I have written recently about the importance of practising programming often and regularly to sharpen your skills and learn new ones (here). A great platform to practise on is Codewars which sets you coding challenges suited to your level for you to solve and shows you other users' solutions (once you have submitted yours).
Here is a video introducing Codewars and how to use the platform. If you want to join Codewars (it's free) follow this link: codewars.com