So I've managed to change the following. Took some time figuring it all out lol thanks to all of you for advice I might've crashed my game a bunch of times in the process but I figured out:
Energy (was the first thing I attempted to learn, so it took a while and a lot of crashes)
Coins (easy)
Gems (took me a while cuz I couldn't get gems lol and then I screwed up a bunch of times)
Player Level (harder, took me a while tbh)
Attribute Levels (super easy)
Friend Levels (this one was interesting! every 28 lines, there's a new friend so I only had to do it once and used the calculated xp values from google)
The only thing I've yet to hack is:
the Animal/Zoo thing level, because you can't speed up the timer of the animal countdown with gems and I haven't figured out how to cheat time or fast forward time..
Fast forwarding time (for items that obviously can't use gems, see above)
The note books thing... I tried to follow that tutorial numberous times, no success yet. I never find anything when I spend 10mins meticulously copying down those search values ****it would be nice to have this one explained better ****