Hi mate, sorry for the delay.
It sounds like you’ve been trying a bunch of different diet fads that ultimately we’re either hard or you didn’t enjoy, possibly both?
Fat loss essentially comes down to energy balance (consuming less energy/calories that you’re body uses to maintain its current state or ‘calorie deficit’) so that being said, you need to find something that you enjoy, or at least don’t hate that fits your lifestyle, something that you can see yourself doing for the long term without it becoming a chore
Honestly everything is just an estimate, you won’t know until you try & look at the results (over at least a few weeks time)
Looking at your stats, I’d estimate your current maintenance calories to be just above 3000 kcal per day, meaning anything below that will probably lead to weight/fat loss
There’s 3500 kcal in 1lb of bodyfat,
so if you’re looking to lose 1lb per week, 3500 over 7 days means dropping 500kcal per day = 2500
if you’re looking to lose 2lbs per week it would mean dropping 1000kcal per day = 2000
I wouldn’t advice to shoot for more than that as while you can lose more ‘weight’ there’s only so much bodyfat you body will drop at a time
To be honest mate, at 110kg there’s absolutely no reason to drop down to 1600kcals, that’s the needs of a small child or a small female, the fact is that the heavier you weight, the faster your metabolism will be & the more calories/energy your body needs to maintain that weight
I see it all the time with guys weighing quite a bit thinking they need to drop down to child level calories
Myself for example, I’m 140lbs & pretty lean & can lose weight on 18-2000 calories
If you drop too low you’ll likely find that it will lead to evening or weekend binges, or leave you with little energy causing you to move less during the day, which means burning less calories over the course of the day will will in turn hamper your weight loss goals
I’d trial 2000-2500 for two weeks, see how things go , review & then make adjustments if needed
Hope that helps