Do not be afraid to try new things. Trying new things lets your mind wonder and lets your creativity come out, and everything that you have practiced will be shown. It is a very good memory aide, to help you find something when it is lost etc. Keep close watch of upcoming events or family get together. Discuss them with friends and family.
Tension can interfere with memory, so learn to relax.
This will help you think more clearly. Good nutrition also keeps a sharp mind. This will surely help your brain power improve. Do not drink too much alcohol, this impairs memory. Depression is often a cause of memory loss.