Extremely Sore Muscles?

Just started kickboxing cles and it seems every mucsle I have is sore. So sore, that I can't sneeze without it hurting, or get out of bed right, etc. I am trying to take my kickboxing cles 4x a week (Mon - Thurs). Am I over doing it? Should I wait until my muscles are somewhat healed or should I keep going? I wanna go tonight but am I going to do more damage than good?