Don't let yourself be discouraged if you're stuck. In the beginning I had an issue re-implementing something that I had built in C++, and it simply didn't work. Put it aside because I didn't know how to proceed, but my brain repeatedly returned to the problem, until it clicked after around three months. Took me around 2h to implement a solution in rust that was faster and more robust than the previous implementation. There will be a time when your productivity increases significantly.