What am I doing wrong??

So this is not the first mini I have painted, probably the 8th? I have slowly been getting better and better and been really happy with my progress with edge highlighting and general detailing but today I seem to have taken 2 steps back and completely ruined my miniature.

I have watched hundreds of videos and tried so many different techniques to get to the point I’m at now but somehow it seems to have gotten worse and I’m not sure what I am doing wrong.

Please be brutally honest, I personally think my highlights look horrible, the arm seems to not be sticking and has resulted in the paint peeling off. Feeling really deflated by this one :/