
This post is a response to a question posed in its complete format: “What do you do if you’re just a lost cause and there’s nothing anyone or you could say or do to change that?”
Stop believing that’s true about you, or resign yourself to a long and slow death while proving you are a lost cause.
Everyone can change, and it always boils down to desire and the effort one makes toward change.
Without a desire to change, neither you nor anyone else can do anything to change that.
First and foremost, you have to want it because that allows you to find the motivation to develop the discipline you need to change to prove to yourself that you’re not a lost cause.
You otherwise are and will always be what you believe yourself to be.
Robert Anton Wilson described the dynamic in simple and entertaining terms that might help, “Within each of us is the thinker and the prover. Whatever the thinker thinks, the prover proves.”

One can only be a lost cause by giving up one’s responsibility to oneself to live one’s best life. No matter how lousy the cards you’re dealt are, you still can make the best of them. Wallowing in defeat is a living a death. Use other people’s disparaging views of you as fuel to change.
Allow those unjust views to anger you justifiably. Convert them into a giant act of rejection and prove them wrong.
Good luck.