Just a little bit of advice from personal experience.

Being good looking is very helpful for obvious reasons. But it's only half of what makes you "attractive".

If you're an 8/10 but are boring as a rock. You're really only a 4/10. The other half is to be interesting.

This is way easier said than done. Going to the gym, work, then home is what boring people do no matter how good looking you are. Get some hobbies. Travel, play sports, find a passion that you truly enjoy. It will help you balance your life and that is something others will notice.

I'll let my ego take the reins here. I will admit I feel that im good looking, but I still don't feel as attractive as I could be because I spend more time than I should at work and at the gym. But I've recently recognized that, I hope you guys (and girls) do too.