Hello, everyone!

I studied computer science and i'm proficient in Python and Js.I want to venture into freelancing so as to build up my portfolio and also as a means of additional revenue

My problem is my current job. I get up early, work late hours all the time, don't make decent money and have a lot of stress at work. As a result, i almost never have a free evening to study, and far too exhausted at weekends (besides, all the housekeeping routine should be done at weekends too).

If I could start freelancing:

I would be making money and practicing at the same time.

I could immediately use in practice all the new things that I will learn.

I have a huge suspicion, that freelancing would be far less stressful, than my current job.

Let's not forget about all the additional motivation!

The question is: what should i learn an practice to be sure I can start freelancing ASAP? Is there some place online where I could practice some problems that are similar to small problems that clients pay to solve?
Thank you