you are just 20.. lots of incels turn out to be quite a lady killer once they reach a certain age.
keep coping and hoping things just might change for good.
for now avoid triggering yourself, if seeing couples trigger u dont leave the house or watch romantic movies , infact cut out tv and medic consumption completely, occasional tv show is okay if you know handle it , music u should be listening should be metal and none of that gay pop shit , read books , develop a good vocabulary , pick up non traditional hobbies like gardening , baking, crocheting , whatever it takes to keep your mind off of girls and sex, stop drinking / smoking if you are into that life.
i am 25 btw