The way Guide Dream League Soccer works is simple: when you open the app, you'll see some advice related to Dream League Soccer that will help you play better in general. To read the advice, just go to the sidebar on the left and tap on the different numbers to see different pieces of advice. You'll find all kinds of advice, like 'practice a lot and don't get down on yourself if you lose,' 'rest once in a while so you don't hurt your eyes,' and 'read this advice to improve the way you play.' So the advice isn't very specific, and you won't find anything more specific in this app. It just says 'get advice.'
Basically, Guide Dream League Soccer is a game guide that doesn't offer a whole lot, and it's not very interesting. It's not really about playing Dream League Soccer better but playing better in general.