Analyze why are you stressed - there has to be some reason. Think about ways to keep away stressing triggers.
Despite everything you could do, if you are still stressed learn to manage it:
1. Went out feelings by talking with good friends.
2. Exercise regularly; it doesn't allow stress to pile up and tell on your health.
3 Dissociate from your negative thinking (mental chatter) under stress. Read my latest hub on this topic.
4.A good way to keep stress away is through relaxing with binaural entrainment audios. Don't be fooled by the simplicity - they are highly effective and if used regularly build up your immune system and raise your energy level. This hub will give you the background