I Was Designing A Little Magic System For A Game Project I'm Planning Once I Finish Brawlmentum And I

I was designing a little magic system for a game project I'm planning once I finish Brawlmentum and I had some trouble with telekinesis: how do I make it not overpowered? It's one of those powers where even as a kid watching superhero movies or reading comics I always had in the back of my mind things like "why don't they just telekinetically grab the guy's heart and rip it out of his chest" and whatnot. So to that my solution is "it's just not that precise and you kind of have to intuit a general area of what you want to grab; but then the other problem: how to limit the weight of what can be picked up in a way that doesn't seem entirely arbitrary? So I deliberated on that for a bit and came up with what I think is an easy solution and even kind of doesn't break physics as hard as usual telekinesis does: whatever force you apply to the object gets applied in reverse to you, spread over your whole body or parts of it so you can lift up a small rock no problem, it's just gonna feel a bit heavy on your arm - but if you try to lift up a boulder, it's either not gonna work at all or you'll collapse into a puddle. Which in turn also means that I have a good excuse to have incredibly jacked up wizards - the stronger you are physically, the more you can lift with magic, too