If all of them told you to stop, then don't.
If society told you that you're not capable of this thing, don't mind them.
If your own family told you that you're not good enough, let them think that way.
If your bestfriends neglected you, then let them be.
Yet if you, yourself, allow all those species to degrade your being, that's the stupidest decision that you'll going to make.
Remember: the only person that you can lean on before, during, and after your journey is yourself. It's either you will let yourself a supporting character in your own story which will vanish in the epilogue, or a main character that will stand still even many sequels will come.