I've been diagnosed with anxiety years ago due to Adjustment Disorder and I've been struggling with car anxiety, especially due to my job in a court that leds me to read all about terrible car accidents.
 That's why I was worried I would never be able to get a license. I did everything in my power to keep calm during the week before the exam and even though I panicked a little during the exam because I forgot to use the stick shift right at first, I was able to pass and get my license yesterday. 

That's when the trouble began. I immediately started to feel anxious for no reason, I drove a little bit una quite decent way but I still felt awful. At the end of the day i cried uncontrollably for hours even if my boyfriend was there to comfort me. 

Today I decided to rest and spent a day doing nothing. Tonight I started crying uncontrollably again after a minor inconvenience, this time I'm alone. 

I don't feel like there's a reason for that, I acknowledge that I have no reason to but tears keep flowing and I can't stop them. How can I make them stop? What can I do to prevent this from happening?

I've had many anxious-depressive simptoms before but this one is weird and new. No usual technique (chamomile, meditation, petting the cat, distract) works