Help loosing weight

Hi, f 18 5'4, I have tried for the longest time to loose weight with my goal weight being around 125lbs (currently 177, have been like that for a while). Everytime I try something it doesn't work and I always feel bad and fall back to the same habit of me eating too much

Are there any foods that make me feel fuller for longer without having a bunch of calories or bullshit ingredients? I've also heard that drinking a gallon of water or so a day could help

I get between 12-15000 steps a day which is good and for the most part I'm decently active

I don't want to do anything like glp1 or any other pills with a bunch of side effects

The biggest motivation for me to do this is my boyfriend, he wants to do all these things with me where I later get insecure and back out due to my weight. He puts in a lot of work and I feel like I'm disappointing him and I want to be both confident enough and healthy enough to go adventure with him