PR for Doctorate Speaker

I need a skilled Public Relations freelancer to help increase my visibility as a speaker. I'm an 82-year-old recent doctorate graduate with an e-book on Amazon, seeking to establish myself as an expert and get on the paid speaker circuit, particularly with community organizations... (Budget: $250 - $750 USD, Jobs: Brand Management, Content Creation, Content Marketing, Event Management, Marketing, Press Releases, Public Relations, Social Media Marketing)