I have no idea whether reincarnation is true-true, but there is a lot of anecdotal evidence for it. I only say this because while I accept reincarnation as a plausible account, my intuitions might be divergent from the standard understanding.
There’s a loose idea out there that we start with a clean slate, but that doesn’t make sense, and I’m not sure there’s any doctrine that actually suggests that. But the reincarnation literature suggests that we do forget some things. Leaning into some skills might be enough to drive them “deeper” into your being, so that they don’t get washed away with the more superficial aspects that might get washed away in the reincarnation process. Try revision fields to set your mind to an earlier time and skill fields to follow might be a good strategy. Or play revision fields while studying. Seems like a good experiment.
Enlightened (or maybe near enlightened) beings can remember their past lives (that’s what the books say, never met one, myself), so that’s another good strategy. Even if you miss the mark, a somewhat earnest attempt at enlightenment seems like it would help. You don’t need crystal clear memories and perfect skill retention. Any head start is of interest to you, if I read you post correctly.
It makes more sense than not that one would reincarnate within a family group. Like attracts like. Tossed plastic six pack rings (and lots of other things) from numerous locations find themselves together in the ocean, so it makes sense that souls do something similar. If reincarnation is true, then I suspects it bootstraps the same sorts of natural processes we find in the physical world. Still, to be safe, try to die nearer to home to improve your odds.