Question from an high school student

Hello guys, I'm a senior high school student who just completed cs50 and I would like to hear about your advice about if it is possible to get good at coding ( for my co-op program from my school most likely full-stack in summer 2025)so I would like spend most of my free time during the next 6 month to learn how to code and develop problem solving skills. do you guys think it is achivable? if so what course or project should I do next?

Any advice will be appreciated thank you so much!!!