Self-hypnosis refers to hypnosis that you apply to yourself. It could be that you go through the process through self-inducement or using a hypnosis tape.
To do it yourself, the simple procedure is:
a. Lie down on a recliner or bed. Take a few deep breath.
b. Relax your entire body starting from your feet, ankle, lower part of leg, knee and upwards to body and then to eyes, head.
c. Rehearse a few times to yourself the suggestions you want to input. Eg, I am self-confident / I am positive and optimistic.
d. When completed, say to yourself that you are now regaining your energy; you feel alive and you are now ready to open your eyes (and proceed to open your eyes).
e. Do a few stretch.