Ask HN: How can I find a mentor?

I have been learning to program on and off for a year now, and recently I tried to take it up again seriously. But, when trying to learn new things I am having problems in understanding the basic things like how is work-stealing scheduler like go's is different from node's event loop or how are synchronous and blocking different from each other. I have tried asking such questions on stack overflow, but have been shot down because of being unspecific or not constructive. I feel like discussing these topics with someone who has better knowledge of these subjects can help clear up things.