If you know the basics its usually a good idea to just start some projects for yourself. This way you walk against problems you will need to do additional research for. Its the fastest way to learn.
If you aren’t comfortable with the basics yet it is still a good idea to start some small projects. Once you get stuck you can ask google for possible solutions. You will get the hang of things real fast.
Start small if you are creating your own projects. Changing the background with a button click for example.