The leprechan mentions that you cant wish for more wishes, "Figures", you think while trying to come up with the "ultimate" wish.
"Aha!" You think, as an idea pops into your head. "I wish that I could change anything, any way my current self would want, no matter what, and that after I and I alone change myself, i can consult my old self about the next wish."
"This has got to be the best wish i've ever thought up!" You think while waiting for the wish to be granted. "Now I can be a different gender, race, or anything, without worrying about the effects of the changes..."
"Wish Granted, However, you may want to change the wish you made, to have another fail-safe, just in case you change something without thinking about it first..."
You think of what fail-safe you could use...
A computer that only you can use, never has any glitches, and requires an imput?
A confirmation system?
A way to pre-check your changes, before they are done?
You get side-tracked, and start wondering what it would be like to be an anime girl. You get back on track and decide on...