Stir crazy at home

My baby is 4 and a half weeks old and I'm on maternity leave but used to working every day 9 to 5 husband is back at work and I have his sister helping me but I feel that I'm going stir-crazy at home I try to keep him awake during the day so that he sleeps better at night since his days and nights got backwards we're doing a little better but I feel like I'm going a little crazy I I sing to him we play I carry him we go on his play mat do a little tummy time I try and get out of the house once a day but I feel very isolated what does everyone else do with their time