What we need now is someone who would create a complete Dev class on Udemy for those who want to code on the Steem Blockchain!
You can do that after you complete the road map you have laid out here.
:-D
The advice you received is sound. Doing is always the most effective learning.
I hope you will include code on your portfolio site. Perhaps link to a GitHub repo. It will be handy for people who want to follow in your footsteps.