Undergraduate / Out of these topics I came up with which has potential for an admissions essay? [2]

I'm applying through the Common App.

Topic 1:The Biggest Mistake of My Life
Basically how I didn't go to college straight after high school, my regrets and why I changed my mind.

Topic 2:Restoring my 73' Camaro
I'd write about all the hard work and dedication it took, cars are my passion but I'm not sure If it would make a good essay.

Topic 3:My life threatening hospitalization
How I don't take life for granted anymore, the struggle to get back to myself after being bedridden for a few weeks.

Any tips welcome, and if none of these topics have potential I don't mind the criticism. Thanks in advance