I'm 23 and have this fear I'm going to be alone forever?

I'm 23 and have never had a girlfriend. I have this fear I'm going to be alone forever. Every girl I meet I get put in the friend zone. I get mad when I see people I know getting married at my age and the pressure society puts on people. I feel the next five years or so is crucial for me to meet a life partner because it seems like if I don't have someone by 30 I might be out of luck. Some people are just destined to be alone forever and I feel that's me. I just feel like such an oddity at my age and always being single. I mean there is people my age already planning weddings and honeymoons. Should I feel this way? What can I do?