Is it embarrassing for a 23 year old to not be able to get into a relationship?

It could be a number of things. First thing I'd do is take a look at myself in the mirror and ask myself, "if I were a girl would I go out with me?" If you do't like what you see change your looks. Or, if it's your personality change it, be friendlier, talk more intelligent, etc. Something should do it.

there's a lot of information onlne about how to talk to girls, how to ask a girl on a date and more.

First you could be pleasant, smile, use some charm. In other words, maybe you need to change up your game?

Are you socially awkward? Ugly? Seriously why, I'm trying to help.

No it isnt. Lots of peer pressure and imagined perceptions, makes the dating world brutal. Explains why there are so many multiple one time relationships. Know what you want but done put pressure on your values. Your self worth is utmost

I wouldn't be bothered with it anymore then.