Never give up. Things may be hard, but if you quit trying they'll never get better. Stop worrying and start trusting God. It will be worth it.
Think about every good thing in your life right now. Free yourself of worrying. Let go of the anxiety, breathe. Stay positive, all is well.
Don't you ever think that your mind can never harm you just because it is your mind! Your mind can really kill you. From dawn to the time you retire, your mind can be a very good friend to you and you...
My experience of what can happen and what actually happens is a world apart, so stop worrying!