Hey Levi, welcome to the forum!
You know I could have written a post much like yours... over 50 years ago. I sure wish I had the wisdom to find a way to get on a good sustainable diet then, but I didn't and have been overweight much of my life. I am working on it now, but I sure wish I could go back to my 15 year old self and get another shot at it. The good thing for you is that you have that chance, and hopefully can do a better job than I did.
Cate gave you good advice, start a diary and tell us more about yourself and what you are doing, it will help you to put it in writing and you will get more good advice and support that way.
Best of luck to you, I sure hope you can make this work. You sound like a smart guy, I am betting you can!