Stop looking at your fretboard. Be confident and tell yourself you know what the fuck you're playing - don't worry about looking at what you're playing unless you're in the damn studio. I hate bands/musicians that concentrate 100% on being perfect when playing live. If I wanted to hear 100% perfect music, I'd sit at the house and listen to the damn album - beer is a lot cheaper, and I can be naked.
When you're playing live, or for an audience, people more than likely aren't going to notice if you fuck up. They're there for the show, so put on a damn show. Throw the fuck down.
If music quality of live performances mattered, the Deftones wouldn't have ever gotten out of Sacramento.
And turn your amp up, being able to hear the twanginess of the strings takes away from everything else.
And cut your damn excess strings off. You aren't in Pearl Jam.