I have played guitar for 9 years and bass for 2, but have yet to ever set up an instrument or have it set up. But I've had a glaring issue for the past few months. I have an LTD Viper-54, and with my ignorance, thought it would be okay to switch it to heavy gauge strings without having it set up to accommodate. The action on my bass is RIDICULOUSLY high now. I've still been using it live, but it's definitely a challenge. How do I go about fixing this problem myself without messing up my only bass?