It really helps if you have something useful to do. I don't mean you have to cure cancer or something; just you have to have something to do with your time, something where you can see the results and say, "Yeah, I did that." It doesn't have to be grand. Like, say you're a video game nerd; well, you could go and edit a wiki for your favorite game. I did that once, and I'm still proud of my work. (Sims 2, if you're wondering.) Or, you can do some volunteer work. Lots of places just need people with a pair of hands and the ability to do simple work, and most autistics have that (though the sensory issues can mean you have to shop around before you find something that fits). You can create something. I like to make afghans and quilts, personally; and to write essays.
You know how everybody thinks that you've only got a good life if you've got a big house with an Olympic-sized pool, a job that involves filling said pool with cash and swimming in it, and regular sexual encounters with beautiful specimens of the gender of your choice; and that the closer you get to that, the better your life is? Yeah. Well, they're wrong.
For the vast majority of us, that wouldn't be a good life. Sure, if you had that kind of life, people might envy you; but everything I've ever read about happiness (not including cheesy self-help books, which I avoid like the plague) says that people who are satisfied with life are the people who find that they have useful things to do, meaningful interaction with others, and a sense of purpose. That's all. You can have that being a waiter or a housewife or an unemployed regular volunteer at the library's let's-read-books-to-kids program. You can have that if you're jogging with your dog, or getting better and better at Halo, or finally finishing that unpublishable first novel you're writing just for the heck of it.
You're not neurotypical. You shouldn't judge yourself by their standards; and if they try to judge you, feel free to stick your tongue out at them and blow a raspberry in the most audacious manner you can manage, because their opinions should matter about as much to you as the stock market does to my cat. Sure, you should live in peace with others--live and let live; help when you can, sympathize when you can't help. But you live YOUR life, not other people's idea of what your life should be. You only get one life--it's too precious to waste living it according to other people's idea of who you ought to be.