The key is sticking with it and trying new things until you figure out what works. There will always be posts you think suck or are dumb or are unfair that get crazy rewards. Such is life. Every day across the world, some idiot becomes a millionaire. Probably every hour. But so it goes. What can you do? Only what you control. No need to whinge or get frustrated.
Think about what you see working. Think about what kind of audience your content could get and iterate what you make. Good luck! If you need help, you can always ping me. Cheers.