OMG - I'm a tech founder trying to promote my SAAS product and I'm like a deer in headlights!

I've been building a tool for agile project management for the past year or two and I think it is looking pretty good. I've got good feedback from agile leads and such and have adjusted the product accordingly and I think now it is solving the problem it is focused on.

It isn't perfect technically and as I am a tech head and I love all the challenges of solving and building tricky software solutions it is very tempting to program and program and program. But I have to bite the bullet and get out of my comfort zone and get some customers!

But I have no budget for marketing, and no acumen for it and I don't know where to start. I have researched forums, blogs, AI, etc. and there is a lot of advice, too much in fact. Every intro email or announcement text I write, I review it and rewrite it over and over as I am constantly wondering if it is too wordy, or doesn't focus on benefits, or whatever advice I read last.

How do people just get on with it without doubting whether this wording is the most compelling, or the website design doesn't look clunky, or I'm not getting to the right people?

The sales and marketing world is so much harder than coding, and at the same time much more squishy and ill defined :-)

Can anyone out there relate, offer some advice, help?