No one took over my account, it's just me". X
No one took over me account, it was me . (someone hacked your account I(n the past) , but it WAS just you who logged in (also in the past).
No one has taken over my account ( from the time you opened the account until now) , it has always been only me ( You are the person who has been logging in all the while until now)
No one is using over my account , it's me.