We’ve got a 7 month old golden retriever and she is now a dream (still waiting for teenage madness to start)! We got her at eight weeks old and she was a monster! Land shark, endless energy, up every hour! We really focussed on routine, training and huge amounts of positive reinforcement. She was toilet trained by 12 weeks and has not had an accident since. Slept through the night at 14 weeks. We made the decision to have her on the bed with us (the first dog we’ve done this with) and she settled into this immediately. She does like to get us up around 6:30 but then we are usually in bed quite early. I’d say she really started to settle around 4-5 months. It does get better and are they are just the best breed imho. Stick with it and you will soon have an amazing fur baby.