Start your own business, become a trainer. At least if you lose a client you don't lose your entire income.
That's what my backup plan is. I know my employer hates me and is waiting to give me the boot. If and when I do get canned I already have little side projects and small income streams. I've been repairing smart phones in my spare time and I never knew how much cash it could bring in. I've got a few coworkers I train after work too.
I've seen kids sell iPhone and smart phone replacement parts that are legit millionaires now. Some kid on bodybuilding.com is doing this and a friend I have in real life is also cashing in. He sold me a bunch of iPhone 4 replacement screens and I've been doing that in my spare time and it's killer income.
Takes maybe 20 minutes to pop off the old one and put the new one in. People pay $100 or more plus the cost of the screen. And there is an endless supply of boneheaded dickbags who drop their iPhones all the time. I wish I got into this before it got big because my friend does this for a living and is paying his way and his wife's way through school.
Just got to find a couple small niches and work with them. If it bombs, whatever... just a bit of your time and maybe a bit of cash. But when you find something that works, you're your own boss with no cock sucker to answer to. My wife will be done school too and will make almost twice as much as I'm making now, so I'll probably start a business and never have to answer to some limp dick again.