The biggest thing is balancing value and comfort, my man. When you're learning
how to turn a girl on, it's important to look at attraction through this lens.
There's two things that you need to fulfill, in order for a girl to want to sleep with you:
1. Value
2. Comfort
Value is things like being confident, charismatic, high status, being a leader of men, having wealth, resources, being jacked, being handsome, having good grooming, etc.
Comfort is things like showing her you're going to protect her, keep her safe, and mainly that you aren't a creep.
There's different ways to do each one, but for your specific case, I'd say you probably don't have enough VALUE and too much COMFORT.
Focus on the following:
-Lift weights, get better style, groom yourself well
-Be edgy, cocky, confident
-Focus on demonstrating pre-selection
Give it some time. It will take a while to get good with girls, but apply this advice and you'll see what I'm talking about. Good luck!