Forget squinting. It’s a bad temp solution that’s totally unnatural to do when unnecessary (not in the sun).
There’s a lot of surgery you could get when you’re older if you care that much, but they’re expensive and dangerous (not getting results you wanted and needing a revisions is stressful). All your flaws are small, but there’s a little too many of them. You’re like a 5.5.
In the meantime, start with the gym, and work your neck with care. Stop caring about sex and girls, too. They’ll come to you when you’re in your late 20s’ and 30s’ when you have some status and assets, but even then you’d be wise to wait. Just tell your mates you’re not focused on women until later in life, outside of a light friendship. Say “what good are they if you can’t use them as nature wants? to have children, and I’m not ready for that yet”. If they make a rebuttal, just tell them they’re not awake, and being stupid, in a playful confident way. Remember, sex is literally for having children. Not having sex for that purpose, but just to ‘get off’, is like eating food and vomiting it out because it tastes nice (rather than using it for energy, which is its purpose).