Stupid! Stupid! Stupid!

Why was i so stupid to think that after 2 months of roughly no climbing I can go and do f**ing campus board?! Why why why?! So here it is... literally 5 days back into climbing and my right shoulder muscle or nerve (not joint) is injured, to the point that I cannot lift my bag or comb my hair sometimes. I just stop midway because of some sharp pain. Shits! this just goes to say that indeed i need to take it easy. Maybe that training is for our strong girls, but not for me, at least not yet. I hate my stupid head for trying.