i can relate, looking for a job is stressing me out in a bad way. try and meditate either once you wake up or right before you go to bed, stick to a meditation routine. exercise is another great one. when i was in school, i woke up, meditated, then did 10-15 minutes of yoga or tai chi. something to stretch and center yourself before or after a hard day will help. as you start to calm, try adding to it, like more time, or harder work outs. tea's with lavender or chamomile will also help. if you can put an hour aside to do the things you love you will cut down on the stress.
another thing you can do is a hot bath with some lavender bath salts, soak in it and breath deeply, it will cleanse and relax you.