Joagos, I enjoyed that. I thought you played it well, just a couple of slightly hesitant points. You made a good sound.
From what you say you have not made progress in your playing for four years. I take it that you have been practising regularly, otherwise I doubt you could expect to progress. If you have been practising regularly then certainly have a look at your study method. It needn't necessarily mean going back to the beginning. Just having a new practice schedule with specific aims may be all that is required. From time to time, however, I think it can be useful to review the basics to see if any particular areas require attention. Presumably you do not have a teacher, because such lack of progress with a teacher would suggest you need a change (of teacher). If that presumption is correct, then maybe arrange a couple or three lessons with a good teacher to review your technique and your study methods.
Anyway, as I said, I enjoyed your recording.