There are so many variables in a decision like this that you've not covered. Just to name a few:

- Do you have a family that relies on your paycheck? - Do you have enough in savings and little enough in debt that you can survive given that the "extra work" could dry up? - Are you focused enough to be your own boss? - If you aren't successful and can't find a job, do you have a fall back when the money runs out, like living with your parent, a working spouse/partner, etc?

The thing is, no one but you can answer those questions, and no one else can assess the amount of risk you're personally willing to stomach.

I guess what I'm trying to say is coming here for advice seems like a poor stratagem. You should really be asking yourself and people who know you well, they'll give you much better feedback than an anonymous group.