how do you cope with having a small penis ? (5.5 inches ). cant date.

Yes I did it manually and gained a bit over half an inch in two months. After that I hit a wall and got sick of using my hand so I stopped.

It's definitely permanent

I wrote this

Your mind has been warped by porn and unrealistic body ideals promoted in culture and media. Your dick is well within average range.
Consider some things.
Vaginas come in various sizes too. There's girl with pussies you could never fill with an 8 inch dick and there girls who's cervix you could maul with a 5 inch dick. Everyone is different.
Women don't generally like getting their cervix rammed. Length isn't the biggest factor.
Lesbians have full and enjoyable sex lives with no penis at all.
Great sex is about far more than slamming your dick in and out as hard and as fast as possible. Especially for many women, touching, teasing, playing, kinky stuff, dirty talk, fingers, mouth, toys can be just as or more important. Most girls I've fucked have been very clitoris focused. Many many men are obsessed with thinking their dick should be able to give her everything she needs leading to them being boring selfish lovers. Women are impressed when you actually notice they have a clitoris. A clit is a small cock and some guys apparently don't go anywhere near it.
Me n my gf enjoy sharing our past experiences. When she would hook up, the best sex had nothing to do with the guys cock size.
I have a 6.5 inch cock. Have had sex with 9 women. One thought I was small: I taught her where her gspot was and she got addicted to it. One, kinda a fuck buddy, said although it wasn't small it was one of the smallest she had experienced: we had a dirty holiday to go and fuck and she had the best fuck of her life despite every bf having had a much much bigger dick. One girl I could barely fit it in, it was so tight and couldn't go the whole way in. One gf thought I was utterly enormous and told me later it actually worried her the first time she saw it and was the biggest she's ever seen by far. Current gf, it's second biggest as her first guy had a huge dick, she thinks I'm massive and majority of guys are all roughly about an inch smaller.

But want to add something. Kegel exercises can give you some size increase. You can practice cum control as well with kegels.
Do them anytime as often as possible but aslo while masturbating. Do them casually any time and also with an erection. You can hang a towel on your cock and try and try to bounce your cock. Aslo as you get close to cumming stop short and hold the orgasm back with kegel muscles. Do this as many times as you can stand. And try keeping that muscle flexed when you actually cum.

The stronger resulting muscles will hold more blood flow back in your dick making it bigger. But importantly also harder. More women are impressed with hardness that length. It's also a big compliment to them. If previously Chad was trying to push his huge but semi limp cock in her and he didn't give her clit enough love, and then you eat her out for ages, take your time, tease her, play and touch, and the whole time you have a solid, rock hard 5.5 she's gonna be having much more fun with you that she did with Chad. I promise you!