I (and others) would be happy to help you, but it'll be much easier if you have more specific questions. Most of the studying is done with the schedules that are on your dashboard, so I'd recommend you check those out first!
Try every titel, link and button. At the beginning it's very overwhelming, but you'll get the hang of it. If you accidentally screw something up, you can always dm the developer and he'll set it back. I once put my language to German. Turns out, I'm not really good at German, so I could not turn it back to English. Was solved in a day after an email. You can always find the adres in the playstore if you have trouble in the app.
