Uni drop out - looking to become as qualified as possible before going back to Uni

Hi all - dropped out of university. Was at a target, global top 10 in Europe doing econ. Hit the mental harder than the hit to NFTs atm and putting the effort I put in wasn't worth it. Dropped out after 2 years. Currently working in an "up and coming" Boutique M&A, internship ends in a couple months (its a summer internship). Parents have given me a 2 year horizon  to go back to university. If I want to retain the ability to work in IB and not waste the next 2 years on beer (working with Germans have had an effect on me), what do I do?

Qualifications, networking, working etc. Want to have an idea of what I can do to stay relevant in the field such that by the time I get back to University, and come out ideally of it alive and successful, I will be an attractive applicant for IB. Thanks!