@lovelivelaugh My dude... I think genetics is definitely a big big thing (can't change that), but I think one very important factor is what your body has become accustomed to and your habits - and that.... you can change.
I'm going to use myself as an example. After yo-yo dieting between 50-70 lbs on and off and between contest seasons, I went on a 10 year permabulk lifestyle... topping the scale at about 270 lbs with a 40 inch waist and well over 30% bf. (I still thought I was sooo ripped lol - I was wrong).
Then end of 2018 I was like - eh its probably time to be a bodybuilder again, so I dieted down 60 lbs in 6 months, and then slowly dropped some more weight in another 6 months... now I'm 190 lbs with a 32 inch waist (at about 12% bf).
I never ever ever thought I could be this lean all year round.... but it's happened.
I may compete again, but for the most part I'm happy holding it here.... Do I track what I eat... yes pretty much EVERYTHING with the exception of one cheat
meal day... But is it hard? ... no, not so much, but I think it does take some effort, and from time to time some will power.... it has been over a year now and I think my body is starting to adapt (AND BECOME ACCUSTOMED) to this weight / bf etc. I took a week off last week and went on vacation, didn't track anything I ate (and I ate like absolute shit), didn't train, didn't bother with anything... came back - jeans still fit, abs still somewhat visible, and still feeling ok (back on track again this week).
Moral of the story:
You can't control your genetics, but you can control your habits, and by dong so for an extended period of time - your body will adapt to it, and it will become easier!
Edit and fun fact: I had a nasty foot fracture this year too... And did zero cardio for 3+ months (I was doing cardio 6 days a week), still managed to maintain my weight and bf and only had to drop 100 calories. I just bought a rower so back at it lol...
Again, this is after 10 years at 30% bf!!!!