Jazz Practice with Backing Tracks Jazz

Hi everybody. I know that i'm not the only one her who wants to learn jazz :) So lately i'm into to practicing the altered scales and try to improvise on some stuff with my loop pedal.

Altered scale is -briefly - meant that you apply b/# on the notes that you CAN add in a scale. It's a bit complicated may be at the beginning but hey ! It's not rocket science :) Here is some documentation that i found :
http://www.jazzguitar.be/altered_guitar_scales.html

Then i realize that you can't just play this on usual chords (obviuosly); you need to learn about the jazz chords progression. Then i fell on backing tracks on youtube and i discovered some of them:

https://www.youtube.com/channel/UCEXDaXzYhqYdLCQ3Ce7U2Og

https://www.youtube.com/channel/UC3Nf709VMJmhvP1mNoxNC3g

I started to practice on standar jazz progression like 2-5-1 and it sounds great.

I hope my experience helps some of you.

As i said i'm also new about this and i'm open to exchange ideas / tips and so on :)