I think finishing it and moving is the best thing to do!
Infact, only having many finished works you can see your real progress. I see people staying for years on a single project that never comes to an end, and this way of working isn’t the best, as far as I know, to get better. Instead, if you have, let’s put, 100 different projects made one after another, rest assured that you will learn a lot and the level of your work will improve in a steady way. Obviously I refer to projects made with, let’s say, love, and with the aim to learn and improve.
During the drawing lessons I took (and I did the same when I had my drawing students) I learnt that making fast sketches of a live model, having 60-120 seconds for each, is an incredible way of training the eye and the hand. The first 50 - 100 drawings can be ugly, this isn’t important at all. But you start training yourself and the improvement will come, and it will come pretty fast. At least, it happened in my experiece. Again: personal opinion/experience, feel free to ignore it