I know this feeling really well but I also learned one thing early on and that is to give a sh....t about what other people think of me. I learned to let go the fear of looking stupid.
It's an illusion to think that all your great and crazy ideas will work. Most of the time you run those game changers which you think will bring you massive success and the y end up not working out.
That's how it is when you an entrepreneur. You have to be willing to try many things out and you'll be surprised that those things which you thing going to flop are the ideas that end up being successful.
While trying all those different things you'll make mistakes and sometimes people will start to talk bad about your or laugh at you. But keep in mind all successful people out there got someday something wrong and people laughed at them but did this stop them?
I don't think so.
Just keep going!!!