If you are getting fired, it's more of a social issue than a skill issue. You need to show up on time and do your work. Work is not a social event.
If you are getting let go, then it is probably a skill issue.
At this point in your life, you should be just finding out what you want to do. Don't think of the jobs you get as a career, try a few jobs and see if you like what you are doing. And, don't think you can't leave a job if you don't like it. On the lower end of the wadge spectrum, jobs are a dime a dozen.
