To learn astral projection can take some practice, here are some tips that can help it to succeed.
1. If you relax first it will make it easier to astral project. When you relax your body be aware of the areas that are most tense and relax them, check that tension hasn’t crept back into your body when you start your astral exercise, as this will lock you into your physical body and prevent you from astral projecting.
2. Once you begin your relaxation exercise, try not to move from that moment on. Remain still during your exercise of astral projection.
There are 9 more tips in the article.