I need guidance like what should I do now?

Question

I am a 12th board appearing student! So I have completed all my stuff that school has to teach in python. With that I have also learnt a bit of Tkinter too from which I created my first game. But now I am stuck on what to do? What should I learn now? And how to deepen my knowledge about python..as python is much more than class 12 books...so just help me out...what should I do..where to go? Which courses to do? Which books to read...in a short...just guide me what next? Please tell in step wise...