Great questions! The general answer is that you have completed a lesson when you completely understand the idea and, or have mastered the skill in the lesson. It becomes second nature to you & you can do it automatically.

Just like Joesef said, it's okay to go forward & work on new things. But make time in your practice routine to review older material until you have it completely under your command.

Originally Posted by: johnv31552

... working on Country 1 now, but although I can play songs I have a hard time with vibrato, bending strings, and other areas.

[/quote]

Sounds like you hit your personal "wall" & that's where you need to focus on improving.

Originally Posted by: johnv31552 I saw that someone in here took an entire year to complete Fundamentals 1 and 2, and I completed Fundamentals 1 in about a week. Am I missing something?[/quote]

Not necessarily. Individuals learn & progress at different paces.

Originally Posted by: johnv31552 A lesson that might take 5 minutes to watch, I can play it but does it need to be mastered? How long did it take you to complete a lesson and how long do you work on it?

Keep working on it until you understand & can play the skill or idea like it's second nature. And even then it doesn't hurt to review the fundamentals. As long as you play the guitar you should work on basic fundamental skills. I've been playing 40 years & every day I'm still practicing scales, trying to learn new styles, songs & ideas.

[quote=johnv31552]

Once I completed Fundamentals 1 and 2 I can play songs and know barre chords. Should I focus on learning more songs?

Yes! You should always learn songs. That's the end goal of learning the instrument after all.

[quote=johnv31552] I am not fast enough at fingering to play a lot of lead licks yet, and that is where I truly want to learn more. Any advice?

You need to focus on those ideas & skills. Sounds like you need to work on basic scale patterns & lead licks. Anders has some great ideas in the Country & Blues courses for learning lead guitar skill. Also, try these tutorials & see if they help!

https://www.guitartricks.com/tutorial.php?input=723

https://www.guitartricks.com/tutorial.php?input=1614

https://www.guitartricks.com/tutorial.php?input=1646

Hope this helps! Thanks to Joesef for a great reply!