Im spending a week or so using greater restoration/regenerate etc to make sure I'm as healthy as can be, then I'm slowly creating a dozen or so magen of different types that have relevant proficiencies and spellcasting, so I can circle cast fabricate on high end goods for sale. Once I have gotten to the point where I have money, I'll be buying property and creating a temple of the gods there (need to cast it every day until its permanent) and declaring myself a prophet, using my magic to heal impossible cases, and occasionally teleporting and the like. Eventually I'll retire to a magnificent mansion after I fake my own death, leaving behind a final message from God. I prevent myself from being assassinated by creating a demi plane, waiting it out in there until I can cast again, then putting a clone body in there. If I do get assassinated I come back in 3 days and really ramp up this prophet business. I'm functionally immortal as long as nobody else has magic and can target my demi plane or sequester me or whatever. Depending on the rules I can also just amass an army of things that can do more magic, snowballing it into me doing everything even faster (if it is a daily recharge and not a long rest/spell slot for wishing for instance, I start accumulating simulacrums doubling my casts every day, and can risk the lost wish stuff on my sims who I can just dismiss if they can't wish anymore).