Thanks for playing and sharing with your opinion!
Sleep deprivation and hunger can be disabled in the settings if you really don't like them. They're part of the resource management, but it's a totally good point about the ship maintenance. We've already discussed that in our Discord and I think future updates in this field will make flights much less boring.
Regarding the fuel system, I think I'll create a poll about that in our Discord.
I agree about the trash box capacity, too.
Will work on these.