Ajuda. Exercício em casa após cirurgia

hi everyone finally went under the knife. thank god only impinged and frozen. tendons were fine ish . went to see surgeon had stitches out. enquired about PT. he said not needed and sent me on me way. now post 3 weeks and dont really have a clue on the best exercises. everyone on youtube has a different opinion. kind of making it up as i go. still struggling with motion due to frozen. they would not believe me until i was sedated and the could not raise my arm in the air. now scouring doctor google for rehab. have set up a mini gym in the garage and purchased resistance bands x 5. sets of small weights 1 up to 5 kg. bench. wall bar ( not needed yet ) and a very big hi fi for the garage lol. now fighting getting strength back and motion. surgeon wanted me back at work 4 weeks post. cannot lift arm safely as i am a carpenter and its all heavy work and twisting with doors and worktops and kitchens any ideas from what you lot have gone through. i even got a hot tub out of the wife for therapy lol i do not want to do what i have gone through injustice and mess it up colin