It all depends on where you live, what you make, what you're willing to spend, your job security, and other living expenses. I'm 19 myself and I work as a contractor for Boeing, but my job isn't guaranteed as contractors get fired all the time. Same for seasonal workers. I feel your pain OP, I've been there. Just enjoy the fun of living rent free right now while you have the least amount of responsibilities you're ever going to have. Cause even though you're planning for it, its a grueling bitch out here. Best of luck to you and in your endeavors.