I'm a Non-EU student studying in the UK.
Is it possible to apply for the Spain visa with a bank statement less than 3 months? Mine is only 2 and a half months because that's how long I've been in the UK.
The simple answer is no. It's a requirement from the embassy to provide bank statements for the last three months, and if you haven't had a bank account that long your Schengen visa application is very likely to be rejected.