....anyways..
First gear is always the hardest to get used to and every car has a different point where the clutch lets go. If your car has an adjustable clutch, see if you can't let it out a little to save some wear on your knee and make the disengagment point a little softer. I wouldn't recommend keeping it there, just enough to help you learn, then each day tighten it back up to where it should be. If it's not then just take the time and relax. Getting nervous or upset is only going to make you even more mad. See if you can spend the day with the car out somewhere. Get used to hearing the engine rev not the tach, once you get a feel for the car then you can watch the tach again. Good luck!