Most Helpful Girl
Yes it's definitely healthy. Just don't fall into the trap where you stop trying to improve yourself. Women are always working on their looks, but men tend to get lazy when they think they're "good enough." Which leads to rejections, friend-zoning, and coming on this website complaining about not getting women and having no idea why. "It can't be looks" they claim, "I'm decent looking."
It's GREAT that you're comfortable in your skin. You should be. Just always work to improve yourself and you'll never find yourself failing. (The women will love you for it too).