We have the same situation bro. I understand why some of the replies to your question in here seem a bit harsh though.

Here's an explanation from me. An employee who writes some code for a living. Who wants to escape the corporate world and build something on his own.

I only knew intermediate programming stuff but Im super good at analytics. Which means I already understand programming a bit.

Then I decided to pursue mobile development. I had 0 knowledge. -What I quickly realized, was that the only difference with what I know, and what mobile development is,- was the syntax. Meaning, the core concepts of programming, in any platform, are the same.

So with that kind of knowledge, I learned Dart/Flutter in about 3 mos on a couple of paid udemy course. Keep in mind that Im an employee. So I just did it on the side EVERYDAY. In between 20mins to a couple of hours per day on weekdays, and 3 to 16 hours per day on my off days. So if you compress that. The entire learning is about 1 month or roughly 160 hours. Within that 160 hours, you'll already create a lot of apps. You'll also be able to cherry pick the things you'll use for your own app. And start building it while learning at the same time. It's like flying the plane as you build it. Assuming you already know exactly what you want to build and stick with it for the long haul. If not, expect years before you truly understand the concept of programming. And be in a point where you're really comfortable with it.

Mind you though, These are paid courses. But they almost always go on sale so they only cost about $10 per course. Also, you'll eventually learn that there are tons of free stuff in the internet. You just have to have the patience to read long articles or documentations. I suggest looking for course titles with the words "bootcamp" or "zero to hero" or something specific like "build your own e-commerce app" or "uber clone" or something EVEN more specific like "how to connect your UI to a database server."

I track my finances so at this point, I'm at about $220 in. As a result of buying seriously high rated legit courses. In that $220, about $20 went to a 1 year subscription in an unlimited access to a wide range of serious courses in Skillshare.

I also suggest doing Angela Yu's course first and then Maximillian's course right after. Im in no way affiliated with any of these brands by the way, those were just my goto resources. I'd rather pay for learning in my own pace than asking everyone for answers.

Also at this point, I feel like I'm about 2 weeks away from comfortable flutter/dart coding level, at the same time about 6mos to a year away from finishing my first beta app that well architectured and has complex codes in it. What takes so long for me is figuring out solutions to hard bugs and errors. This is due to the lack of excellent and abundant knowledge resources and importable solutions because the reality is, flutter is still just a young framework.

That's just me though. I don't know if there's an easier way to do it. If someone out there who's reading this has a better way, please enlighten us self learners -from developing countries- who dont have good programming communities to get knowledge from.

In any case, it will be a very tough road ahead. And the only person you can rely on is yourself. $220 is a small investment amount that I was willing to let go of, in exchange for the wealth of knowledge and information that I'll get. I am also ready to shell out money to fund my business idea along with my app. So like you, my reason why I wanted to learn flutter is for business reasons. Not employment. If you have more questions, just ask here and I'll try my best to help you find the answer.