my mom wants me to apply for jobs for the summer now (not summer camps, like minimum wage jobs ie. retail, or internships) is this realistic that i need to apply so far in advance?

I am age 57, mentally disabled just looking to answer and ask questions, I live on the East Coast of the United States of America I try to give positive advice and keep things for real and I expect the same treatment in return have a Blessed day hope God Blesses your day with the best of health, happiness, Many Blessings.