Don't worry, everything will work out fine.
It might help you to get something along the lines of a 'stress ball', it's a foam ball
That you can squeeze when stressed of anxious.
Deep breaths can also sometimes help.
Try and get lots of exercise.
Don't try to deal with every stress reaction at once, pick one thing make it the priority.
I know it's hard but try and get a full nights sleep.

And rember, This is a minor problem and you can deal with it.