Hi,
change the things you eat, not the amount. Buy whey protein if You don't have it already. Learn to distinguish hunger from munchies Also, before You even begin to cut, do Yourself a favor and write weekly food intake in some spreadsheet. Get rough estimates on fat % in each product. This will be boring in the beginning but You will see where the fat is coming from (mind sugar also) and go from there. This is what i'm doing and my BF is going down thanks to few substitutes like switching from fried meat to grilled. Reducing fruits (since they have a ton of sugar - be it good or bad doesn't matter). And drink water instead of everything else but milk (one glass a day or two is enough and has more benefits that not drinking it at all).
Good luck
The milk is not a problem when you look at nutrition label, rest of the food is. In my case I focused on removing unnessesary fat from diet without decreasing total calories. When you make the spreadsheet it will be much easier to find substitutes for most of the stuff. But do it in small steps so You dont endup eating what you dont like just because its a little heathier. Also i cleaned up sugar and "bad" fat first and for now it is sufficient. Good luck and be patient.
There are websites and apps that make tracking a LOT easier. I use myFitnessPal but there are many others out there. When I first started using it three years ago and just tracking what I was eating before I started changing stuff I could not believe how horrible I was treating myself. Fat was out of control.