I am working in a healthcare consulting company, and I have lots of free time after work, and I want to push myself to read an online master computer science degree, then move on to a data science job in a tech company.

I have plenty of time, not only every day, but 2 or 3 years when wating for H1b sponsor, I know I could only take online courses and solve problems on Leetcode, but I want to listen more suggestions, thanks!