I agree with what has been said here. The only real instance I find that an instructor would be helpful for is if you have physical challenges that can't seem to be overcome with practice. Sometimes have someone look and go 'Oh, maybe if you position the guitar this way, it will be easier'. A video can't look back at you and say to you 'I see your problem'.

If you are gaining lots from Guitar Tricks, you may not need someone but it's worth keeping that option open in your mind.