It’s definitely worth shopping around to figure out what will work for you but, no matter what approach you take, you’re going to need discipline. It also takes practice so don’t be too hard on yourself if you wobble a bit.
Would it be an option to try and shift your eating window to a time when when you’re not at work with all the desserts?
Whilst IF works wonders for me and many others it isn’t for everyone. You need to find something that works for you and if you are surrounded by temptation and could easily overeat in a 4 hour window maybe a CICO type diet would work better for you? That way you could count calories and factor in one of your parents cakes a week or a small piece every few days?
I would start out with shorter windows and build up to it. I would also make a commitment to eating protein with fat first and then allowing yourself whatever you want if you musy although the more keto, the easier it is. My guess is that you may be restricting healthy fats in meat and other foods and that is causing you to binge because your body is trying to get the proper nutrition.
I really recommend the book Delay Don’t Deny (quick read) and her podcast Intermittent Fasting Stories. Anything by Jason Fung is great too but his stuff is harder to focus on.
Clean fasting (water, maybe 1 black coffee) will make your fasting much easier. Sweet tastes from a squeeze of lemon, a drop of cream, stevia, or fruit flavored water will all trigger you to get food obsessive thoughts and trigger you to binge during your window.
High Fructose-Corn syrup messes up your body’s ability to know when you are full, so ditch that during your eating window. Get a rule that you only eat healthy foods when opening your window. And the goal should be 1 meal during that window with a small amount of food before and after if you want it. Not eating the whole time. You want to search for foods and a way of eating that make you feel your best.