PLEASE HELP! I am stuck on writing A descriptive essay 500-750 world, My Topic An elderly person

Think of the "elderly" people you know. Write about just one of them. Describe his/her physical appearance. Include any mobility abilities or disabilities. What about mental, social, and spiritual aspects?

Brainstorm about this person. Jot down ideas that describe him/her. Then write a thesis sentence and outline the arguments that support your thesis.