My Life Questions

The Hair Cut

I had nothing to do last night so I sat around thinking, which usually is not the greatest idea. I relized that I feel really drab and that I need to turn it up a notch. I had a shower and deep conditioned my hair, shaved my legs, exfoliated everywhere, applied some tan in a can and polished my nails. Even after ever beauty treatment I could think of I still was not satisfied. I wanted something more.
Brilliant me got the idea to give myself a hair cut. It started out as an innocent bang trim but ended up becoming a full head massacre. I cut off HUGE clumps of hair with thinning shears that I bought at London Drugs. In all, Im missing about two inched in length...and a lot more in thickness. Some peices of my hair is only about two or three inches long. IT WAS THE WORST IDEA EVER!!!!!!
It doesnt look hidious or anything, it just...well...wasn't a good idea. There's hair all over my bathroom floor and my hair is like paper thin now. I was to scared to style it this morning so I dont know the full damage yet, wet it looked ok. Tomorrow I'm going to get the guts to see it all styled. My fingers are crossed that it looks ok and I dont like like I'm four and went nutz with safety scissors. It will be a long couple of months trying to hide my stupidity.
I usually just walk out of the shower and head off to work, letting my hair die however it choses. I will hate myself for months if I can't do that anymore. It would serve me right though I supposed.
I had this friend once in high school who had dark brown hair. It was long and beautiful  but she wanted a change. She wanted lighter hair. She BLEACHED IT! She left the blonde in so long though that it fried her hair badly enough that she had to cut it all off! It was aweful. Plus it didnt even go blonde in the end, it went some funny orange color. 

So my question is:
Why do we get bored of ourselves and feel the need to re-invent our looks? In the end is it really worth it? (my haircut wasn't worth it and I dont think my friends bleach was either)