Playing Smoke on the Water over and over won’t make you better.

Below is a link to the lesson on learning the fretboard. It is must know stuff.

Here is a lesson on blues scales:

This is a lesson on blues chords:

Blues Chords – Slow Blues in A – Blues Guitar Lessons https://youtu.be/ZnpPhrphluM

Here is a quick lesson on tuning your guitar to an “open G” chord:

Here is a lesson to get you started playing in open G:

Here is a lesson on playing slide in Open G:

Here is Big Bill Broozy playing some real blues.

This guy was the blues personified:

https://youtu.be/mnZzNToI1tE

John Lee Hooker:

Muddy Waters: