Should I go back to work or stay self employed?

I work construction and the company i was working for got slow over the winter so I went to work for myself. I have stayed fairly busy so far and got a few good jobs and I have profited about $15000.00 over the last 3 months. I make about 3k a month at work with full benefits and have a chance to go back. My question is do I give it all up to go back? I have a legitimate business (LLC, Fully Insured, Bonded the whole deal) but I don't know if I will be able to keep it going and stay busy without loosing everything I have worked for.