dude seriously its not that bad, who cares, almost the same thing happened to me a couple months ago, you feel shitty tonight but you will be over it in a couple day's. and stop saying speeding is bad and all that crap, the only time speeding is bad is when your going down a buisy road and you could harm other people, but if your by yourself and you couldnt hurt anyone else its only you thats in danger and thats your own choice, and going that fast really isnt that bad, you know the law is fucked up, it just sucks you didnt see the lights while going 140 so you could get away extremely easy.
so yeah i got a 12 point ticket a couple months ago, i was doing kinda what you did, it was early in the morning, there were no cars at all, and i was going 150, then there were these corners which are really wide and banked and i was going 100 around those. and thats where the cop saw me, but i slowed down to about 80. and i got 8 points for that, 4 of the points were for not having my proof of insurance that was taken off when i went to court with my insurance. so i had 8 points and they took 2 points off and all i did was explain what happened, i pretty much just said i was speeding, i didnt have a reason and thats it. so they will probably take off two points or so, mabye more depending on if you try to fight it or whatever.
for me it was wierd cause i just went into this room with some other guy and i just explained all the crap to him and he just said, ok i can take about 2 points off is that good? and that was it, the cop didnt even have to be there which sucks cause if he didnt show i would have gotten 0 points.
if you actually do the whole court thing with a judge person and the cop shows up and everything then id say try to fight it a little. ask to show records or whatever of his radar being callibrated recently, cuase i hear that its very very common for them not to, and you can get points off for that, go get pictures of the speed limit signs if they are bad looking, mabye even go spray paint a little on them or something or bang them up alot then take tons of pictures and say the speed limit wasnt properly marked, cause i heard (im not totally sure) but if a road doesnt have a speed limit sign or a sign you cant easily read, there is no speed limit, or atleast you cant get a ticket or as big of a ticket for speeding there is alot of crap like that you can do, just research it or be creative.
of admit what you did, if it was late at night say you had to be home before your cerfew, or say something like there was nobody around that i could have endangered, it was only myself, and say how the road was straight you could see plenty far ahead, blah blah blah. and they could take points off for that.
you could also do what i did and take a driving course, like "alive at 25" which is what i did in fort collins, and then it makes them think your super responsible and say it changed how you think and how you will drive and all that bullshit.
im pretty damn sure you wont get 6 points though, you will probably end up with 4 points taken away, mabye less.
so yeah stop freaking out, dont sell your car unless you get something better, its not half as bad as you think. i was the same way the first night, but then i realised i was definatly over reacting. and now i speed more than ever, fuck the police, seriously what kind of person wants to be an asshole for a job? and get people in trouble for a job, thats fucked up. and you know speeding laws in the U.S. are totally fucked up, you didnt do anything wrong, the laws are wrong.