Someone mentored you, pay it forward. If you think you got where you are entirely on your own, you need therapy.

Oh come on. Plenty of us here never had any form of direct mentorship at work or otherwise. It's not unusual when you pick up the trade as a hobby in your teens, and in terms of programming and technical skills (which is what we're discussing here), you stopped being a junior before getting your first job.

Myself, I learned from many folks on IRC and ol' phpBB boards, and I helped others on IRC and said phpBB boards in return; almost all of that was before graduating. That, and books, lots of books, and even more time spent just reading code online and writing my own. None of that hardly qualifies as "mentoring".