[zellyn]

Some excellent suggestions here.

For learning, exercism.io is amazing: they assign people as mentors to review your code, and I've had really good experiences while learning Rust, with feedback calibrated nicely to my level of expertise.

For how to think about algorithmic interviews, I always recommend this short set of notes: http://courses.csail.mit.edu/iap/interview/materials.php

For fun, try Advent of Code this year and see how far you get, and whether you like it. As @analog31 suggested, this might be a fun thing to do with his son.

[randomluck040]

I registered at exercism.io as a mentor to help other people. Thank you for sharing!