Can anyone fix this?

As some of you are aware, I added a Mario hat to my model and changed my clothes to Mario colors. Some time after that, I turned on the physics to see what would happen and this happened. My right eye vanished, my front hair flew up like in the pic, and my back hair moved like crazy! I'd like to fix this for when I decide to animate my model (and if I want the physics turned on). I don't do animations now, but I may start to sometime.

If anyone knows how to fix this, please don't hesitate to tell me.

Credits:
Joshua "Mario McFly" Holcomb - , Edited/Recolored by with help from ShokatsuryouKomei