[umutisik]

I was in a similar situation 10 years ago, but in a less well-paid job :) I happened on a musician's talk about how to be a productive musician. He was saying that his most important suggestion was to "write everyday". It seemed obvious that musicians should write music everyday. But he meant writing your thoughts everyday on paper. (I am not a musician btw) I took that to heart and started writing in the mornings. The practice helped me to construct, then re-construct, my work and career from first principles.

That being said, "my current mental state is affecting my ability to learn effectively" sounds like you're in some distress. It will not hurt at all to seek help.