I'm a self taught developer, and ever since my first job, given enough time at a workplace I've always become the guy who people go to when they're stuck, and I've enjoyed doing the same on various online communities.
I've always found those interactions very rewarding, I find it much easier to apply myself in a focused way to helping other people solve their problems. I really believe in the "teach a man to fish" cliche.
If you are a student or need help working on open source, I offer a 50% rate reduction. Note that I will not solve exercises/assignments for you, I am only willing to help you to solve them yourself.
Finally, I suggest you check out this great write up by Adam Goldman, another mentor on this site, which has some great tips on how better utilize this service https://www.codementor.io/adamgold/get-the-most-out-of-your-session-5c5iho6ns