Would cutting sugar out of my diet help me lose these stubborn 15 pounds?

Okay this is kinda like 5 questions rolled into one. I will try to be brief. The root of the issue is that I have a plate and screws on the outer edge of my right foot, that causes quite a bit of pain and general discomfort for me every day. (I’m getting it out next winter) Because of that, getting cardio into my workout is pretty difficult. I don’t love running in the first place, but I feel great when I do it, so I try anyhow. But, after two cardio workouts in a 2–3 day span, my foot is just killing me. I love tennis, but it’s the absolute worst on my foot, with all the pivoting. Jumping rope which I’m also very found of is a silent killer too. Basically anything that involves feet.

So, it sucks. I really enjoy working out with weights and that doesn’t affect my foot so I still do that regularly, but I have these problem 15 pounds that for years I’ve been trying to get off, and can’t. Mostly on my stomach and ass. I am pretty sure a consistent cardio routine would burn that fat off, and that is my only issue. I just can’t figure out how to do that in this situation.

I eat really healthy 90% of the time. I never drink pop and I don’t eat fast food or processed/prepared foods, I buy mostly organic and I cook a lot from scratch….,but I LOVE baking and I have a super bad sweet tooth and I think that combined with my inability to do cardio is what is making it so hard for me to lose these few pounds. So, I eat a lot of sugar, and I acknowledge that it makes me feel like shit, but I love it so much I can’t stop. But I really want to try to. I know I’d feel so much better, and probably have a lot more energy.

I guess I’m just wondering if anyone has experience with cutting out sugar, and how it affects you, and if I would lose weight…or if anyone has any suggestions of cardio I could do without hurting my foot, I would REALLY love to hear them!!! Thanks!