"The hardest part about participating in any facet of the arts is overcoming your own insecurities. It’s easy to feel self-conscious when you perform music, especially when you’re not confident in your playing abilities to begin with.
The worst part about being unconfident as a musician is that it will rob you of enjoyment from your playing. If you don’t feel comfortable playing in front of others you’ll never be able to experience playing with your friends, playing open mics (which is a lot of fun if you have the right mindset), or being in a band."
If you're feeling a lack of confidence as a musician, then you should take a look at this great article posted by our good friends at Tunecore, with tips that will help you gain confidence, and therefore become a better overall musician.