Yeah Blaze, listen to everyone.
When woman see a fat guy walking down the road and he looks/feels particular UNCONFIDENT like you say you do, they just laugh and pity him. Simple as that. I'm imagining you've seen 'The Pick Up Artist' TV show on VH1.
Look at the fat guy. (No offense to any overweight PUA's) but he couldn't number close a single time! He was cool and friendly, but because of his weight, every girl seen him as a potential new friend and not a potential new fucker.
Here's the thing though. If you lose your weight, you WILL feel more confident and girls will look at you and think 'damn. he knows how to take care of himself. He looks strong!' but if you're overweight, they will think 'uhh... He cant even take care of his self, whut chance has he got taking care of me?'
See whut I mean? You're just a beginner, being overweight is a massive disadvantage immediately. However, if you're a PRO PUA, then, nothing matters. Looks do not matter at all.
So what I say is, go to the gym, lose that weight, then practise your game! Once you're good, either let yourself loose and continue gaming with your skill. Or, stay in shape and continue gaming with skill and looks
Your choice. Hope you read this.