If your renting then move out as soon as you can, and move on with your life, some where quieter. Dont let it run you down any longer than you have to, its only you who will suffer 🙁
You can stay and try to fight it, but its 50/50, they might get evicted, they might have enough of the agro and move out, or they might not:
I lived above a drug dealer un-employed council tenant in flats a few years ago, went through fking hell with the ****. He was up all night, TV, music, mates round, drinking, our flat stank of weed, he had a dog which would bark loads too … and when that wasnt happening he’d be slamming doors or up at 5am spewing is guts up (which we could hear in out bedroom) after drinking larger all night. Communal recyling bin .. full of beer cans right after it got emptied. We’d have bins emptied outside our flat, kebab thrown up the door, “love” letters taped to our door and communal doors, spinless little fggot would stand and stare at us out his window whenever we left or came home …
Council did fk all, tons of letters, emails, all they did was keep warning the scum bag and offering us fking “mediation sessions” to try and resolve the problem. Spoke to the Police, Council, Envorimental whatever it was … no one gave a shit. They offered to install noise monitoring gear in the flat so they could start monitoring the noise levels… weeks and weeks and weeks and nothing happened. Landlord offered us around a 30% discount from out rent to stay, I declined as there was only two ways it was gonna end … I was on the verge od doing something I’d regret (you know its bad when you’ve worked out the entire plan in your head, every detail) and ending up in trouble or move out, we moved out.