Hi, you've certainly got some diverse stuff you've mastered/you're mastering there!! So you've obviously got a lot more technique (?) than you may think??
Looked up Big Love for a reminder on YouTube though Good choice (!!) but I'm not sure you need to be playing it just like that anyway, sounds like the kind of thing you can add a bit of your style/a little improv to once you've got it- I'm sure you'll blow it out the water!!!
And the videos on Facebook maybe aren't that great to you but let's face it maybe you're your own worst critic at times??? And a lot of it is about style and that "personal touch" so to someone else.............So don't hide them!! You're clearly "in touch" with the music and that's got to come through (although still not sure where Mario fits into that ). AND like you said when you "improve" that's got to stand out so much as well.
PLUS major talent playing anyway, don't forget that!!
And nothing wrong with pushing the boundaries a bit, as long as you give yourself credit for how far you actually have been/are already doing that. So maybe give yourself just that little bit more "breathing space" at times??

SO: "My best mate and my dad sometimes tell me stuff like that - will I listen? Hell no! Haha."

NOW, that's now ME, your BEST MATE and your DAD all telling you stuff like that. I'd say time to listen just a little!!!

Alison