[Rusf11]

I know some of  the basics of programming ,some languages like c c++ nd a bit of python , what would be the best sites to improve my existing basics to a  intermediate level.

[dehphos]

You learn best when you try to write something on your own. I would write my friends discord bots to learn JS and Python for example. When you have the motivation even stackoverflow is a good place to learn.

[darkspawn]

Youtube tutorials

[The_Ripper]

Sounds good you wanna start learning python. Python is a easy language to learn.
Find a book where they guide you step by step. Then look at youtube guides too.
When you understand the basic of python, start making your own software and try new things out, then you will be good.