You might not like leaving the house, but guess what? Almost no one likes having to work. If any of us won the lottery, we'd probably quit our jobs. I don't know anyone that works at their job purely out of love for it. They work out of necessity. Like it or not, you're probably going to need to seek employment eventually.
Any business you start at home will likely fail. (or any business period, for that matter) Further, it takes money to start a business which you may not have, and doing anything yourself, opens you up to liability, and you have to jump through some legal holes in declaring a business, etc.
You can get a job as a computer bench tech, but it doesn't pay very well, nor does it have benefits. Most bench tech jobs require A+ certifications.
Probably the best paying job for the least amount of schooling is a LPN, which is a 2-year degree. Or, if you go for 4 years, you can become a RN and get paid more.
If you don't want to go to school at all, you can try something like janitorial work. It typically pays more than minimum wage and offers benefits. However, getting a degree is more than worth it in the long run.
For secondary income, one option is to sell your plasma. You can make $200/month selling plasma 8 times per month, but this carries a 3/10000 risk of death every time you donate according to the FDA.
Another is the National Guard, or Air National Guard. This doesn't pay any better than the plasma donation, though, and you might end up getting sent to Iraq, making military service your primary job for an undetermined amount of time.