I have no work experience at 23.. what do I do?

So I’m 23 didn’t go to college because I joined the service. I’m getting out after 4 years and don’t know what to do.. I want to go to college but I’m thinking I’ll be 27-28 before I graduate and that seems old to me.. I don’t know what to do I can’t even get a job in IT even though I have the prerequisites (no degree..) what do I do when I don’t have a degree or any work experience.. I’m in a dark place ..