>>1 you're 19 not 50. You may not want the "ideal" life that most people do however, having a comfortable life is your ideal. If you can't find a job then keep trying to educate yourself in order to qualify for other careers, or apply to jobs that you wouldn't normally apply for. Create something, take up a new hobby, try something healthy and new. Explore your opinions. Better yourself.
I read a really interesting self-improvement article and one of things that it stated was that being a "nice guy" doesn't get you anywhere. Being a nice guy isn't going to make the world give you everything that you want. You need to focus and work on your skills, your confidence, your charisma, one step at a time. You need to believe that you can do it, and with time you will. Don't get discouraged okay?
Life is perpetual change so every morning that you wake up, make sure that those changes are for the better.
I'm 18 and even I wonder if I'm good enough, should I even bother? Will I just end up as another suicide? Yeah those doubts suck but that doesn't stop me, doesn't stop me from trying. I often wonder "Who would ever love someone like me? How could they? I'm a concoction of facades and personas, innocence and twisted thoughts." But I still wake up every morning and take care of myself, dress myself, put my makeup on just so I can possibly shoot a flirtatious smile at a boy (or a girl). Sure it's easy to get discouraged with finding romance but sometimes that someone else might smile back, and that's the first step.
Keep up the effort, discouragement isn't your friend, but the power of your own will is. Good luck to you!