Realistically speaking if you move on to another job/industry, you are really just a middle aged employee without any relevant experience or skillsets trying to compete with all the fresh grads out there. You mention you are willing to take a paycut, but my sense is you don’t fully appreciate what sort of paycut is required. We are not talking about downgrading from 10k to 8-9k here, likely if you join some junior executive job, the salary will be 2.5-3.5k, even then it’s a tough sell because of your age and requirement not to do OT.

Alternatively you can hold out and try to make use of your banking connection to get you a back office admin based job that can offer you regular working hours without OT. Maybe they can still give some credit for your past experience in banks and at least offer you some sort of experienced associate pay of 4-5k+.