If I assume negatively it will ALWAYS end up that way. If I am positive about something or say, "yes this will happen, I can do it" It will happen...

I am positive about what I can accomplish, but I assume a negative reaction from others. Sort of a mixture of what you're proposing.

At a first cut, my time and energy doesn't matter much, but I'm really worried that I'll bother or inconvenience other people...