Welcome aboard. Can't say I've ever had that problem, but as we say in America "Suck it up buttercup". Myself, I practice sitting and play standing.

Paul

I would start the free lessons. There's more than enough material in modules 1 and 2 to keep you busy several hours a day. Heck. I've spent 2 + hours just on the finger permutations alone and that's with my metronome at 140-160 bpm playing 8th and 16th notes. When you become proficient with all of that, then I would sign up for the paid lessons and get help in trouble areas and things that need further explanation.

Paul

I can't say much about other websites, but I do take in person lessons mostly because my improve skills suck. I don't know how one would go about learning improve skills from a website. You pretty much have to play with other people.
What haven't liked in the past is instructors who do a quick transcription in the half hour slot and send you on your way.
Or you get a Mel Bay book and are told to "Go work on this stuff" They do not teach.
I like things explained, why do these chords go together? It's not a I IV V, how can that work? I went for a long time not having any idea what I was playing and got really tired of it. Find a good teacher.
Interests? I have a huge interest in theory these days. I don't know why. but I do.

Paul