Dont worry about how old your bank account, but do take a note that they will need at least 14 days for your bank statement, bring your book and the copies each page of your bank statement
the immigration service has been there for few years back, not a thing that can blacklist you from the kingdom. But like I said, think of this as your very last solution if all of your possibilities become impossible.
As other suggested, ED visa or any kind of visa might be able to help you a bit.