For me it was changing my diet, cutting out the skipping of meals, binge-ing, drinking energy drinks, etc.
Back to 3 square high protein melas a day, and three healthy balanced snacks. No more softdrink, etc.
I really had to pull the belt in to lost the weight, and have only really relaxed in the last six months, for maintenance.
2019 was FAT to FIT for me.
2020 is now FIT to STRONG.
What's your diet look like?
Meals wise?
Lots of Protein, try to keep fats and sugars down, but not crazy.
When I first started to lost I had to shock the system, so it was protein shake with banana for brekkie, brown rice and tuna bowl for lunch, and breast chicken, three veg for dinner most days, changing up the chicken for salmon and lean beef some days, and the tuna/brown rice with low fat yoghurt and museli.
three snacks a day either a half decent protein bar (e.g - low carb, low fats) handful of unsalted nuts and fruits, or yoghurt with museli.
ON maintenance I have now relaxed a bit, and brought things like potatoes, white bread, the odd chocolate etc back into the diet that i missed, and no sugar soft drink - as I said above, the tastes changed and I enjoy Coke No Sugar now, when I used to hate it.
The one thing I Still do to this day religiously is track food macros using myfitnesspal and try to keep my day to a ratio of 40:30:40 for Carbs, Fats, Protein - and I keep it honest - e.g if i have a swig of solo from the fridge like i did last night, I put it in the app. Whilst the habits are now build and I enjoy excercise, going to the gym, etc,
Tracking my numbers keeps me in check - If I have a day where my calories blow out by 500 to 1000 over what I've burned, shit happens thats ok, just don't keep having days like that.
The one thing is that the goal setting never stops. I learned from one of the guys I work out with that he focussed only on weight numbers, and when he hit his weight he was depressed, because he hadn't set up another goal. So when I first hit 99.9kegs, I was SO Happy - but I had a good long look at myself, and said - "Welp, Underdog, you're still fat, Can't really run far, whats next?
Next goal was be fit enough to coach my Sons soccer team by February 2019 - and I nailed that.
Numeric goals are still there, but now they are things like "run 5kms in 30 minutes" and lifting goals, numbers of burpees, etc..