There's no point in trying to convince people who don't like you, to start liking you.
It's never going to happen.
No matter how hard you try.
It's a waste of your time (and the other person's time as a matter of fact).
A much better idea is to focus and nurture the relationships with the people you already have.
The ones who do already like you.
The ones who do already support you.
The ones who were there for you when things were rough.
That's a much better use of your time.