Clipping is a common problem actually. I observed game models closely while in-game before, clipping is always there to some degree. So, don't worry too much about it, Ry. It's okay to clip sometimes. (Quite the contradiction to what I said to myself when I worked on this, but still) XD

And yes, I'm perfecting my 3D skill to create animation/game-ready models. So low-poly, good topology, and good uv mapping + texturing.