Pretty interesting question sorry all the redditors are downvoting this and giving you fantasy land looks don’t matter replies. A couple comments nailed it, if they’re out of your league then improve yourself until you’re in their league, or lower your standards. Looks are just one aspect of attractiveness, being an interesting/funny/enjoyable person to be around has a huge impact. Just bring something else to the table to bridge that gap.
If you don’t want to do that and don’t want to lower your standards, you can’t really expect them to go for you. Just have to put yourself in places where maybe an opportunity comes to you or you happen to click with someone ¯\(ツ)/¯
Not the one you responded to but it’s a couple things, generally just lungs feeling inflamed, difficulty taking a full breath, way more sensitive to air quality / air temperature, and a bit of autonomic (I have to use a cpap to fall asleep now because sometimes I just stop breathing as I’m falling asleep)