What are some good exercises to do at home to help me breath better .

Hi I'm on trimbow 127 at the moment .
It dose give me some help .
Not much but some relief .
Can anyone suggest any good exercises to do at home that could help me .
I'm suggesting to do even basic house work and even bathing myself is real struggle too
I have a shower but I find it hard to breathe when having a shower ..so baths are easier but I still struggling with a basic bath Wash .??