I'm scared of ending up old and lonely

I'm scared of ending up old and lonely

I'm 23, finished uni last year, have a good job, sociable and always out having fun but there is just one thing missing in my life.....I've never had a boyfriend. Its recently been making me feel unhappy and if there is something wrong with me but I don't think I'm ugly, I know I'm a fun person with lots of interests and easy to get on with yet I just feel like the forgotten one!!

I fear rejection and so never go up to anybody I like in bars or clubs. If somebody is flirting with me I either don't realise until afterwards or just don't know how to respond. I had been on a date with one guy but was so nervous I ended up being sick in the toilets most of the night. I just feel so unconfident when it comes to relationships and the opposite sex!! Which is not what I am like generally!!

Not really sure what to do. I'm just scared of ending up an old lonely lady with lots of regrets!!!