Nervous before driving lessons?

You're not so good with numbers are you!

I get like this too. I'm 17, and had 14 and a half hours of lessons. (First lesson was an hour and a half)
Iv had a few bad lessons, maybe 2 or 3. But mostly they have been decent lessons, my last lesson was pretty good, he had a Citroen DS3, but he sold it and bought another brand new one because his old one was up to 40,000 miles, doesn't sound like a lot, but he only had the car a year by this point.
But yeah, my last lesson, last Friday, was my first time driving his new DS3 and my first lesson in about a month. (I hadn't been very well)
I'm usually able to take my mind off it for a few hours before the lesson, then about 40 mins before the lesson i start getting nervous, i feel sick, i need to go for a pee a lot, my stomach is churning a lot, i end up trying to do deep breathes to just relax myself, they don't work for me though, as soon as i stop i get nervous again.
I have never been a confident person though, i was bullied a lot through school and had lots of medical problems through the years, so because of that, i just tend to look on the bad side of things all the time, i go into things thinking the worst all the time, if i do well then i surprise myself and i think of it as a fluke, if i don't do well or i fail whatever it is i'm trying to do, then i think ''Yup, just what i expected'' It's so frustrating, lots of people tell me to be confident and look at the good side of things, but it isn't easy for me.
I failed my theory test the first time, 49/50 on the questions, and 40/75 on the Hazard perception, the hazard perception pass mark is 44, so i missed out on 4 points lol. That was another £31 i had to pay. The 2nd time i went into it not giving a s**t, i was cocky, i was a smart ass, i expect to fail, but thought f**k it, whatever happens..happens. And it seemed to work for me because i passed pretty easily the 2nd time.
My instructor says its fear of the unknown with me, i haven't got a test booked yet, but all i keep thinking is, if i get this nervous on lessons with someone iv spent 14 hours in a car with, how the hell am i going to cope on a test. I quite often feel like i wanna give up on driving already, just because i feel like i will never pass my test when i do take it, and i'm really scared of hearing those words at the end....I'm sorry to tell you, you have failed''
I even bought some rescue remedy spray a few days ago, i used it a few days ago, i got up very early with only afew hours sleep, and i was meeting my dad to play Snooker, after 30 mins of playing snooker i started playing really badly, i felt very grumpy, i didn't feel motivated and i was just tired, i couldn't be bothered, i used some rescue remedy, this was the first time using it, and after 5 mins i did feel different, i had a spring in my step, just in general felt quite cherpy and confident and i maintained it for the next few hours that we played.
I don't know if it was Rescue remedy or not, i haven't tried it for nerves yet though, i have a driving lesson tomorrow, Friday at 3pm, so i will try it and see if it does anything for me. I'm already dreading this lesson. But yeah, maybe you should try some rescue remedy seeing as you get so nervous too. It might help you relax a bit. I'm sorry for the long post, i got kinda carried away. Hope no one minds.
Oh and the reason i blanked out the swear words is because i'm new here and i wasn't sure if i could swear or not lol.
Have a great day everyone.