Hi maks,
Yes I know a few players I work with have a similar problem to this with their legs and movement. A really good way is using speed ladders and doing fast feet exercises with them, this can help get you on your toes more and also improve general footwork too. I would also continue with the skipping as this can take time to show any results.
Lastly I would suggest doing stretching and flexibility exercises for your legs and lower body, sometimes flexibility can hold back your ability to move well, so make sure you are stretching,especially after your training and matches!
