Hey @2026willbemyyear it can feel overwhelming and well done for being honest about your diet.
It sounds like calorie counting and meal planning might really help.
To start with it might just help by using an app, lose it, nutri check, my fitness pal, and plugging in how much you are eating.
Once you’ve got to grips with it and can see which things are throwing you off, then you can start making small, incremental changes.
Find some breakfast / lunch / dinners that fit within your deficit and batch cook and plan as much as you can.
make some healthy swaps to reduce the calories, lightest mayo, use an oil spray (not fry light, just oil in a pump action bottle), reduce your portion sizes and go slow.
If you can and have a lot of Christmas bits left you could offer it on olio or take unopened things to the food bank maybe?
Tracking and consistency are your friends.
Also, think about your triggers and what has got you here. If you can afford some sessions with a therapist it might help unlock the reasons behind why you over eat.