You do not have 3 hours a week for yourself
How much exercise do you need to do to be fit and healthy?
You can exercise every single day if your time and schedule allow it and if your body accepts it.
But, as a minimum, you should do three hours a week.
That makes 150 minutes a week.
A week has a total of about 24X7=168 hours
And you are saying that you can not invest 3 hours out of that.
Just 3 hours can make you
-sleep better
-live better
-eat better
-digest better
-think better
-work better
-perform better
Happy you, happy life.