For someone with low self esteem, I deal with a lot of people who always say "Ignore what other people think of you" and that sort of mindset.

Except other people like me and I hate myself. But then people say "You shouldn't be so hard on yourself, look at how much people like you" or "You shouldn't commit suicide because other people love you/will miss you" which then makes me just assume all advice is bullshit and everyone changes their viewpoint just to say I'm wrong. Which then makes me doubt EVERYONE'S positions and assume it's all bullshit, they just want me to be wrong.

Like either I should not care about what other people think of me (which means I ignore both all negative and positive opinions of me) or I shouldn't end my life/hate myself because of other people caring about me (which means by caring about people having positive opinions of me I also listen to people with negative opinions of me).

It can't be both, it has to be one or the other. But I still, no matter what, only am told it's both even though "both" is 100% at odds with their logic.