Hey, there are a hundred different approaches and tricks you could start with - but at the end of the day, you'll need to experiment a bit and find what works for you.
My suggestion, based on what you eat/do right now, may feel a little contrary: I think you should pay attention to eating more, not less. Just...a specific kind of more.
Keep your protein portions as is, and every meal eat at least 3c of vegetables (any kind, so long as it's an actual vege). Then, if you're still hungry after that, have 1/2 the starches of what you'd normally eat (or a piece of fruit). If you're still hungry after that, have a glass of water, wait 15minn, and then have more protein if you need. Stick with what you enjoy eating, for now.
The advantage of this approach is that you are not focusing on what you 'can't' have, you're focusing on nourishing food. If this works for you, there are more strategies you can add as you go along, creating a cumulative lifestyle change, as opposed to a 'diet'.
Best of luck, and welcome to the forums!