Grrrrrr....technology bites the big one

I am sooooo frustrated and upset right now. It started a few days ago when Firefox was being an ass. It will open on my computer, and I can hear it working, but it wouldn't display. I installed Google Chrome at my brother-in-law's suggestion, and it worked fine. Stupid me couldn't leave well enough alone and had to try to fix Firefox again. Now, my computer is doing the same things with Chrome and other applications that it was doing with Firefox. I hate this. It makes me want to hurt myself. Why am I so stupid. Essh. Please ignore me.