Those are pretty solid all around numbers for an amateur; since you have a good sprint that's going to get you on the podium more than the other strengths in your curve.
For 80% of the races you'll do your weight isn't going to hold you back and if you lose weight you'll lose that sprint which is going to get you to Cat 1 fastest.
For your weight issue I'd just focus on eating cleaner but I wouldn't actively try to lose weight. Lots of protein and enough carbs to fuel your rides.