So sorry to hear about your horrible car accident and good thing you're physically alright. Car accidents can really be nerve wracking. My advice would be - try to think of past failures as learning experiences. For example when we're learning new, we become better and better.

Try to live in the moment and all you can do is your best. Drink in the beautiful surroundings and love your new job. Even if the worst happens, its okay and you can keep trying. Congratulations on getting this job and all the best to you.