I think everyone gets first tee nerves. I tivo’d all of the PGA championship which is a lot of video and you can tell even the PGA pros have problems hitting their best off the first tee.
For me, personally, I just try to keep perspective. I’m going to hit 7-8 bad shots a round and if one of them is the first shot, I’m one step closer to getting them out of my system.
One practical tip that I do on the range, assuming i have the time, is to “play” the first hole 3-4 times with some of the last remaining range balls. For example, one course I play is a short par 4 with a trap off the tee to the right. I imagine the hole and visualize something on the range being the left edge of that right trap and hit a driver trying to keep it in play. Then I hit a wedge and rinse and repeat.
If I’m totally incapable of hitting the driver well, i just downgrade to a 3 wood or iron and try it again until i feel more confident and just go with it off the first tee. I know Scott Broadie and Scott Faucett would be disappointed, but there is value to me to get on the first tee feeling confident and there are a dozen more drives left to smack it once I’ve shaken off the jitters