>>57653583If it only gets worse when you open and close it then it's probably a bad cable getting worn out by the hinge, if you've been slamming it closed or pounding your stylus into the screen like a gorilla then you're breaking the screen itself. Ifixit has guides, parts, and tools so you can repair it yourself. If you're really scared you'll fuck it up then you can try a repair shop but it's a dying industry so good luck finding one that'll touch it.
As for the time/berry ratio, wtf are you doing that you need so many? Plant a bunch throughout your playthrough, check in to water/harvest/replant everything before you save and quit and you'll have a decent stockpile by the e4, do the same with the ones you get later while you work on catching/breeding for competitive pokemon or filling out the dex or go do whatever else and you'll have all the ev berries you'll need to fix your story team up. Berry farming is a background activity, not the main event and there's very few you NEED in large quantities.