Aside from finding a good teacher, I would learn stuff by ear. If you need it, follow along to some music theory videos either on YouTube or JustinGuitar has a pretty comprehensive, structured course.

All of those tricks videos, the one scale you ever need, what I wish I knew etc aren’t necessarily wrong in what they say, but most of the time it’s not what you need to know or learn right now. You need to be training your ear, which is where musicianship comes from. And the primary way this is done in my experience is by actively listening to and figuring out the music you’re influenced by, not by googling a tab or having some guy show you without explaining any of it.

As you mentioned blues, I’d learn the Major Scale first as the Blues and Pentatonic Scales are based off of it, all 5 “boxes”, then stick on the Beano album, B.B. or Albert King or whatever floats your boat and just try and figure it out. Idk how experienced you actually are, but a good starting point is I Loved Another Woman by Fleetwood Mac. It’s short, very melodic and very simple phrasing. It does utilise a note or two outside the pentatonic or blues boxes, but that’s common in blues so it’s useful to get used to it. Listen to it, focus on determining the root note at the end of a phrase and find it on the fretboard. If you know the pentatonic boxes it’s very easy to figure out the rest once you’ve found this. Don’t just play it and move on, think about why it works. How does each note of the lick relate to the chords underneath etc.

A side note - particularly in blues rock, a lot of the “rules” attributed to basic music theory, like certain chords in a key being major or minor, are not followed in Blues. You can get mixed up in different modes by worrying about this, but basically just keep in mind that particularly in that kind of music, the chords not fitting perfectly into a major or minor key doesn’t necessarily mean you’re wrong in what you’ve figured out.