One of the best ways to increase your skill is to always hold your guitar pick the same way. This is especially important when you begin to take lessons or begin to start working on yourfinger dexterity and speed. Find a position that is comfortable and that feels good to you and be sure to hold the guitar pick this way every time you pick it up. This is one of the best ways to jump start your picking speed and to keep your picking hand up to speed as you increase your finger dexterity.
Guitar lessons are a great way to learn but you have to take yourself to the next level though practice and persistence. You can learn to shred if you work hard enough and continually improve your technique. You can become great by practicing your scales for 30 minutes a day. Just do it once a day for 30 minutes and run through a few scales and in 6 months you will be on your way. Your finger dexterity will be head and shoulders above your peers.