Advice on eating healthier?

I was raised with the idea that any food is good food because I was so bad with food as a kid. Now I'm older, it's kinda hard to feel that way when I'm eating like a child at almost 20. Ashamed to admit it but I don't eat any vegetables and I don't eat fruit often because the taste and textures differ too much between seasons. I've gained a bit of weight recently and I'm not really independent enough to go out on my own and work it off but that's a whole other issue, my house is also too small to do it inside. I really don't know what to do. I'm ashamed and I feel disgusting to be totally honest. If anyone has any advice for me I'd be grateful :)