When people stop believing in the things you want to achieve that is not the time to stop.
The time to stop is when you have no breathe in you to give anything more.
Until then keep trying and keep going there is someone out there who needs to hear what you have to say and engage with it. Make new connections and fulfil that purpose. You may lose supporters but don’t give in or give up on yourself. Dust yourself off and pick up where you left of. Sometimes you will need to change your strategies and make it happen differently to how you expected. There is still more work to do.