for me, it always takes me a little bit of time to get used to a car's transmission, and I learned to drive stick years ago. I just bought a 99 accord coupe with manual transmission. It took me several days of driving to and from work to get the transition between stop and first to be perfect. I was giving it too much or too little gas. Give it some time, don't give up on it so easily, you just bought the car. Definitely don't go trade it in, that's just not a smart thing to do, money wise.
I reread your last post, and you need to let the clutch out slower. That was the exact problem I had before I got my transitions to be perfect. Give it some time, and you'll turn out fine. You wont need a class or anything.