Cry for a couple of hours because you just lost a dear friend (I'm kidding btw). To be honest, I usually find something else to do until it's fixed like play games on my tablet or phone even though I'm not a huge fan of mobile games. The second thing would be to look up what kind of PC you're going to build if your machine cannot be successfully repaired and salvage the functional parts from old PC (if there are any) and build a brand new gaming PC.