Here is a summary I wrote for a novice traveller of mine who will be landing at YYZ soon. Most of it applies elsewhere as well:

• First, you check in online 24 hours before (your airline may vary.) Use the airline's web site, and your reservation code (from a confirmation email, most likely.) Even if you can't print the boarding pass, check in online.
• Second, work out when you need to arrive at the airport - probably 2 or 3 hours before departure. Then work back from that to see when to leave
• You get on the plane and you sleep. Even if it's daytime.
• At some point on the flight they will hand out landing cards. You will need to know the address where you're staying, and how much stuff you are bringing (eg gifts for your hosts) that will stay in Canada. You will need the value in Canadian dollars.
• As the flight concludes, your passport should be handy. Put away in your bag but handy
• If you have a local SIM or can roam, you can turn on your phone while the plane is landing. You can't use it while you are at the booth with the border officer but other than that you can. Many airports have free wifi. You can check the schedule of your next transportation (train, bus) or communicate with the person who is meeting you.
• When you land there is a tiny chance border officers will be in the jetway saying "passports". They do that for China flights sometimes. If so, a quick showing of your passport should be enough.
• Then there is a long walk and some escalators and eventually down to a lineup place. [While airports vary, the long walk generally leads to a place you line up.]
• Check the signs because the Canadian citizens line should be faster (if you're not a citizen, don't waste lineup time being in the wrong line.)
• When you get to the officer you hand over your passport and landing card. They ask you stuff you told them already. Where are you coming from? How long were you gone (or will you be here?) What are you bringing in?
• The officer then writes a code on the card and gives it back. Put the passport away safe. You go past the booth and line up to show the card to someone
• Specific to YYZ, just after the CBSA booth before you go down to the baggage claim, there is a screen where you can find out what carousel your bag is at. And it's much easier to see the numbers from upstairs so take a moment, look up your flight, and look down there for your carousel. Then go on down and wait for your bag
• At baggage claim, wait for your bag. Look around at other people while you're waiting. If you see people you recognize from the flight, you can be more confident you're waiting in the right place.
• When you get your bag, leave the baggage claim area. You line up one more time to show the card to someone as you leave
• Watch for signs that say "Exit" or "Ground Transportation." Don't follow signs that say "Connections" if you want to leave the airport.

The airport is designed for people who have never been there before and can't read signs in the local language. Since you can read English, you should be fine in just about every airport in the world. Just stay calm and unhurried and follow the signs, as well as directions from uniformed people who tell you which way to go, when to wait, and so on.

Here is a summary I wrote for a novice traveller of mine who will be landing at YYZ soon. Most of it applies elsewhere as well:

• First, you check in online 24 hours before (your airline may vary.) Use the airline's web site, and your reservation code (from a confirmation email, most likely.) Even if you can't print the boarding pass, check in online.
• Second, work out when you need to arrive at the airport - probably 2 or 3 hours before departure. Then work back from that to see when to leave
• You get on the plane and you sleep. Even if it's daytime.
• At some point on the flight they will hand out landing cards. You will need to know the address where you're staying, and how much stuff you are bringing (eg gifts for your hosts) that will stay in Canada. You will need the value in Canadian dollars.
• As the flight concludes, your passport should be handy. Put away in your bag but handy
• If you have a local SIM or can roam, you can turn on your phone while the plane is landing. You can't use it while you are at the booth with the border officer but other than that you can. Many airports have free wifi. You can check the schedule of your next transportation (train, bus) or communicate with the person who is meeting you.
• When you land there is a tiny chance border officers will be in the jetway saying "passports". They do that for China flights sometimes. If so, a quick showing of your passport should be enough.
• Then there is a long walk and some escalators and eventually down to a lineup place. [While airports vary, the long walk generally leads to a place you line up.]
• Check the signs because the Canadian citizens line should be faster (if you're not a citizen, don't waste lineup time being in the wrong line.)
• When you get to the officer you hand over your passport and landing card. They ask you stuff you told them already. Where are you coming from? How long were you gone (or will you be here?) What are you bringing in?
• The officer then writes a code on the card and gives it back. Put the passport away safe. You go past the booth and line up to show the card to someone
• Specific to YYZ, just after the CBSA booth before you go down to the baggage claim, there is a screen where you can find out what carousel your bag is at. And it's much easier to see the numbers from upstairs so take a moment, look up your flight, and look down there for your carousel. Then go on down and wait for your bag
• At baggage claim, wait for your bag. Look around at other people while you're waiting. If you see people you recognize from the flight, you can be more confident you're waiting in the right place.
• When you get your bag, leave the baggage claim area. You line up one more time to show the card to someone as you leave
• Watch for signs that say "Exit" or "Ground Transportation." Don't follow signs that say "Connections" if you want to leave the airport.

The airport is designed for people who have never been there before and can't read signs in the local language. Since you can read English, you should be fine in just about every airport in the world. Just stay calm and unhurried and follow the signs, as well as directions from uniformed people who tell you which way to go, when to wait, and so on.