Red
Stiffy is right about the protein intake, rely on that to feed you.
At your weight you may also have cardiovascular issues. So include plenty of walking.
I have it, my doctor didn’t like the cholesterol levels or blood pressure readings at all, so had to revise what I eat and include cardio (which I hate), mine is not due to weight, it’s due to 2.5 decades of living like every day is my last, but results are the same.
Im not going to get into the whole diet thing, think you have plenty of guidance on that.
As far as training goes, here is some very simple advice.
Buy the Arnold Schwarzenegger New Encyclopaedia of Modern Body Building.
It is an old school good read book that imo delivers the best results. It’s interesting to read, spells out the program and easy to follow.
I think it’s the best of the choices you have.
kunce here will tell you, “no, no, no Bro. You godda Do full body, push pull, have to squat 7 times a week” and other shit like that.
Reality is, if you have time, check pics here of kunce who do that, On a good day these kunce look like tennis players.
Then check for kunce who do the good old school split routines, they look like body builders.
thats all, best of luck with your op.