Proper way of learning

I am a newbie and have an flx4. I have been practising for a week through free online videos. I understand the basics, like beat matching, and can change transitions between two songs.

I don't know what to do next. Should I just find songs and try to transition? Feel kinda lost. How should I approach this? Should I buy a course? too much info on the internet without step-by-step learning.

Any advice would be appreciated.