What I've learned from the last time I graduated was that no matter what just stay positive. Believe me I know it's the cheeriest thing you've heard and probably the number one thing people tell you when you're struggling.
Repeat after me
"It will pass, everything is going to be okay"
Believe me I'm not the most positive person, I don't wake up with the biggest smile ready to conquer the day. Everyone has their bad days but you can't let that define you.
So when you're in a slump, listen to this and forget for awhile just forget what you were worrying about and live.
Sometimes the simplest things work. Take a walk, read a book or eat some ice cream. Just remember to live and whatever you think is a problem now you probably won't remember in a few months from now. And I know a song won't solve your problems but giving up and admitting defeat is no longer the option. No matter how many No's you get or how many times you spend sending your resumes, It'll work out sooner or later. Success doesn't have a deadline. Give yourself a timeline but be flexible, some of your goals may be harder to achieve and may take more time then you thought.
So if you're in the same boat as me, dealing with anything on the same level read up on some other tips to help you stay positive.