Hi Beachwalker,
Self Esteem Supercharger is definitely the right Paraliminal to start with. Along with this you can also use Belief Paraliminal as well as New Option Generator.
The Belief Paraliminal will help you strengthen your belief in your abilities and capabilities. So whatever negativity you hear will seem like a very distant sound more or less reduced to a whisper. The New Option Generator will help your mind produce new options to deal with people who are inherently negative and worse is that you can't avoid them or walk away from them.
God Bless You.
Kind regards
Vaibhav Sharma