What are the steps to take if my personal email has been hacked?

My personal email has been hacked. I am receiving spam on my work email coming from my personal email account.

What do I do to rectify the situation?

I don’t want to log on and give my grandmother’s first name or answer other security questions if someone else has access to my email account.

It’s AOL, in case you’re wondering.

I recently received an email saying that I should change the password, as “unusual activity” has been occurring. I did change the password at that time.

I don’t want to delete the account as I have emails there that I would like to keep and have access to.

What do I do now?