These guys have gave you alot of sound advice. Gotta walk before you can run. Having said that, dont be discouraged, get a welding job somewhere and plan on starting your own busines someday. Do small jobs at home for friends and just keep looking. I agree with the other guys. Are the grants free? in other words you dont have to pay it back? I'd still do lots of planning, work awhile then make a go of it

Good luck