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.
Why not operate under the assumption that your future self has already gotten away with everything? Taking advantage of the bootstrap paradox. Like Bill & Ted, everything around the dad’s keys. Might at least be fun, that way.