I will start by saying I completely understand what you mean, and I have often felt the same.
I am single at the moment, had a great relationship and screwed it up! Talked too much, lied when I got bored and now back home with mum!
I agree with penny, I was so scared talking to someone in that way and being rejected again and again makes it difficult but then you meet someone amazing, and the effort is worth it! Don’t give up we all have a lot to offer!
I just wish someone had told me to be myself,go for it and if it doesn’t work to try again and not give up