I'm writing a book that teaches everything I have learned in the past 20 years about writing small niche software and selling it.

Need some help from my fellow DevRanters.
Anyone who comments here with something constructive gets a free copy when it's done.

When I say:
"Why don't you just write your own software and sell it to end users"

What is the first thing that pops into your head?

Is it "I don't know how to advertise"
or
"that's a pipe dream"
or
"I tried starting my own business, but _______"
or
"I am doing that, i have this side project "
(how long have you spent on that side project?)

I need to know all your concerns questions fears, skepticism etc around the idea of writing your OWN software.

After 20 years I have like, so much knowledge, but it's sometimes hard to get it all out, UNLESS someone has a question or concern, then, out it comes.

So, I'm going to (hopefully) collect all the questions here ... and answer them, and it'll help me out a lot to extract this knowledge.

A lot of stuff I do without even thinking and realizing all the years it took to even know that.

What would you like to know the most?

You have the skills, you have the know how, you can probably see it in your head, so what's stopping you from making the leap?