Being nervous is perfectly normal. The only way to not be nervous is to be very confident, which can be a good thing if you've done the work and a lot of practice, but it can also be a bad thing if you're over confident for some reason.
It's honestly expected for people to fail on their first and sometimes their second test. I failed my first test because I also failed a shoulder check, but I passed my second test at least. My driving instructor claimed that 90% of people who go on their first driver's test fail. Well, that's here anyway.
The best thing you can do is just try again. Try to remember where you went wrong last time, remember your mistakes and learn from them. It sucks that you don't have a car to practice in and that does make things harder but man, you only failed because of two things which you can fix. You're very close!
You've already written it down on the forum but... well, it's up to you if you want to do this or not, write down your mistakes in a book. Read them the night before your test, read them to yourself on the day of your test. Read them out a loud to yourself. I know it sounds dumb, but reading stuff out loud helps me in a lot of stuff.
With all that said...
With your shoulder check, remember you must do this every time you want to change lanes. Throw your indicators (or signals) on first to tell other drivers you are wanting to change lanes, shoulder check the direction you want to change lanes, and change lanes only if it is safe and clear to do so.
With that sharp turn of yours, just take it slow, take your time, be patient and be careful. You might be going too fast and trying to slow down too late.
Good luck Ugh. Keep us posted. You're very close, my friend.
