What skill should i learn next

so pass 3 month i have done cs50p 2 little project it was stock predict anddd image classifler but i use ai helping and i write some line i just want to know how ml would need to learn and work and i write explanation every line and rn i watching pandas from corey schafer im just done update row and i wanna ask what should i learn next after pandas

I appreciate every recommended and im currently 15 so i probably have much time to learn ig