Starter - Help NEEDED

It’s quite simple: you do your lessons, wait, then you do your reviews. While you wait for new lessons or reviews, you can study other things, like grammar or shadowing pronunciation. That’s it.

The things you can do on a pc or app are exactly the same. I recommend you use some userscripts (check out this). These allow you to do your reviews in whatever order you want (radicals first, kanji first, etc) or add some other functionality to the site.