Stipulations:
- You cannot die and are immune to disease
- You cannot alter the future such that you change the world from your point of origin. i.e. You cannot become so famous that future people recognize you as immortal.
- If you vary the timeline too much you will cease to exist.


I wonder how many people in this thread have read/seen 11.22.63 before.
Without some amount of preparation, I think I’d just end up mostly working for cash and living out of a van for most of that time, or otherwise staying off-grid. There’s a surprising amount of paperwork involved in legally existing as a person.
Also, since memorizing statistics is not one of my hobbies, I’d want/need some kind of written ledger to have an edge in back-alley sports betting.
Just for fun’s sake though, I’d try my hand at writing professionally again, as a novelist, but just ripping off the plots of movies and TV shows that haven’t been filmed yet. Self-publishing everything under pen names of course, to preserve my anonymity.