Hey, David.  Thanks for posting all that great advice.  These are great observations for any guitar student.

"Get a guitar that fits your hands and body . . . I gained months of skill in one day."

I've seen this over & again with students.

"Find some cheap easy wins."

Yes!  Play music in any way you can as soon as possible.

"Don't be afraid of music theory."

If it keeps pace with your practical skills it can only help.

Thanks again!