My IM reply to MillerSHO was too long so I'll post it here...
I had been planning on it for months but never got off my ass to do it full time, had some clients on my own but I only used it as a supplant, not a full time gig. The company I worked for was going bankrupt, so they weren't doing much to help their clients anyway, that kind of helped me in retaining its customer base for myself. Some of my clients had already discontinued using that company's service because they were very unhappy with it. It was a sinking ship and everyone else jumped, I was one of the last. One day I got pissed and told them I quit, and that's how I started lol.
As to certs, you know as well as I do that they're for the most part just papers with stuff written on them if the certs holder don't have real world experience to back them up. I got a bunch of them, and guess what, NONE of my referal clients ever asked me what I have, because it doesn't matter to them. What does matter to them is that I can get it done, done right, and in less time than other people, while not costing them so much that my service becomes prohibitively expensive. At $120 an hour I'm not cheap, but I'm not the most expensive either, with my Cisco, Apple and MS certs I can command $150/hr, but I don't. The key is to provide more than they expected, people like surprises when they're the good kind of surprises.
As to the agreement you signed, I signed one too for not 6 months but for a few years. Fortunately the company went out of business and as I said many of my clients stopped using them before I went on my own, so it wasn't an issue for me. You should talk to your clients and let them know your intentions. When 6 months (or the remainder of it) is up, quit and you have a client base that's very difficult to obtain. It'll be a very easy decision for your clients: retain the person that's done everything here, we like him, he charges less, or stay with the company that used to employ him and have them send out someone that has to learn everything from scratch, and pay more.
The way I look at my 5 years of difficult times working for my old company is this...I got lots of invaluable experiences, tons of certs, and in the end an awsome client base when I left. The company may have taken advantage of me, abused me and cheated me out of many things, but what I walked away with is all mine, so I don't regret having spent 5 years there.
Re: bad quarters....I would't know, I don't go by quarters except as in taxes
I evaluate my hours and productivity every
week I never rest on my laurels, if I had a good week, great, but that's last week. This week I start from scratch, and evaluate it again on the weekend. I've been growing at a steady 15 to 20% every year, so that's got to be a working formula, for me anyway. For bigger companies this is a lot of evals, but I'm small and will stay small, I'll never be rich doing IT but I'll use the money I bring from IT to make real money.
I'd be happy to talk to you if I can be of help, don't hesitate to contact me :)