Hi Alexy, and a warm welcome to the Community 
Wow, you have a rich musical background, piano and guitar since childhood (and professional experience)
I had a listen to your arrangement of My Favourite Things and it was superb. I loved the harmonics. I also enjoyed Angelina by Tommy Emmanuel who I saw the other week. Over 5K views on a couple of your videos… Impressive 
Most of us here have some kind of connection to Justin and his method of teaching. We have benefited from it and wish to engage and support others on their journey.
You’ll find that the more you engage with and help others, the more you will gain from it yourself in terms of friendship, as well as listeners
I look forward to more of your contributions.