35-ready to change(again)

I am a struggling 35 year old mother/wife! I've struggled with weight for most of my life! I've been around 340 at my highest and got down to 220 at my lowest! Now I am at 299.2 and ready to make this change again! My husband wanted to buy a new vehicle-reality hit when I didn't fit in the seat!!! Now-my goal to lose the weight so we can buy the vehicle and I'll look good in it! I want to have a healthy weight-I've tried many different things-as my husband says "you get comfortable and you gain the weight"! I have no large health issues that are hindering my weight loss! I love food! That's my downfall! Anyone with similar issues???