Is this a good idea?

I've read the entire "What to do wen you're desperate" thread. It was eye opening.

Just a little background first. I'm in debt at college, and i need to pay up in less then a week. I have to make roughly 40 - 50 dollars (to pay in installments a month, the overall debt i have is 300 dollars).

Stay with me for a minute more, i'm not asking out of ignorance. I have absolutely no one to ask.

For a clear perspective, the average wage from were i worked at was 225$ a month, it's a normal salary in my country, some have it lower, it depends on the job.

I've ben thinking to go from apartment to apartment, in my city, for a couple of days at least (7-8 hours or more a day), offering my services - like cleaning cars, fixing computers wen in need, and so on.

The reason why i made this thread is that i've seen a great deal of people here, that are vastly more experienced and informed than i could ever comprehend, and it would be cool to know if it's a goodidea.

I had a chance, a big one, to fix my mistakes. It could have worked out infinitely better. But i let that chance go, and there's no one to blame than my self. I can't ask for a loan from no one in my family. I failed them already a few times in the past. College isn't the only thing that's wrong.
Basically, i'm at the end of my rope, i've ruined everything, and Christmas is also approaching. But if i can do, at least this, i can change.

I'm an idiot that's to lazy to leave his comfort zone, a bit shy aswell to do what i said above. But i am willing to change that, because once that desperation feeling hits me, i'll go all out.