I have lastname.surname@gmail.com and it was used from a person with my name to register on electronic online shops, religious activity and also porn site acces

I have lastname.surname@gmail.com and it was used from a person with my name to register on electronic online shops, religious activity and also porn site access. Few months ago, I used an alias to post on the monthly "Who want to be hired" here in HN and I am full of spam: a "company" is following up on me every week about "Project for estimate".