Step 1: Start with the Hour of Code tutorials and read the docs here
Step 2: Complete all of the basic tutorials on Youtube
Step 3: complete all of the intermediate tutorials on youtube
Step 4: Complete all of the advanced tutorials on Youtube
Step 5: Complete all of the tutorials from @darren here
Step 6: Step your game up and study all of the stuff that @actech has provided here (careful, it’s heavy!)
Step 7: Log 50+ hours reading through forum posts covering anything that you still have questions about.
Now you’ve gone to programming class. Then, get your feet wet and start building your app. When you run into issues, search the forum first. Start reading solutions. Then if you are still stuck, post a specific question with screenshots of what you’ve tried, what the problem is, your blocks, etc.
or build your app while doing tthe other stuff listed above. That’s what i did. I learned and built my own at the same time.