I was in your shoes about 8 weeks ago. Welcome to the healing club!

Walking....lots of Walking. I did short walks to minium tired 3 times a day at 2 weeks It sounds counter intuitive but me walking everyday since I got out of surgery actually helped me heal so much faster. It started out .2 miles took me 30 minutes in week 2. Now on week 10 I am doing 2.5 miles in 40 and my pain has been well managed.

Also defently do the breathing exercises multiple times a day. I had a breathing out bike and a the suck in thing. Those helped get all the fluid out in 6 days and then helped me get my wind back with the walking.

Also I didn't rush anything. If I needed to sleep I selpt. I let the person I had helping me pick up everything. I just kept things absolutely as simple as possible.

Also I bought one of these for the bed to keep me laying on my back: https://www.amazon.com/dp/B08BLDHPKL
It was amazing! Ignore the pregnancy pillow part and just enjoy letting it help your body relax when you have to lay on your back. Then it can be adjusted when you want to sit up for comfort.