awsome first truck, i know. heed this advice maybe.
wait a couple of months before doing any major modifications. i know, sadly not what you want to hear. its a fact (and yes ive proved it and so have 99% of my friends) that most new drivers will get into an accident sometime in the 6 months after they get their liscense. I dont know how good of a driver you are, (im sure your fine) but please dont take your truck for grantid. luckly mine wasnt serious. some guy backed out of a parking space and i admit i was trying to find a parking spot and wasnt really looking. it was at 3 mph, and it didnt do anyhting to my lc, but i busted out his tail light. (amzingly, the light i hit didnt work anyways, and he already had the new one in his truck. meaning no $ i had to spend and it was a qucik "dont worry about it" and we were both on our way (okay a little more chat than that, i handled it responsibly but thats the jist of it))
also. friends are brutal when you have an lc in highschool. yes, they will call it a land rover. dont defend your landcruiser, they dont really care what its called. smile and nod. they may read the back of it and realize what its called, but honestly it dosent matter. its a nice truck.
remember that your car is probably better than anybody elses car in the whole school. dont brag about it. be modest. you dont have to answer how you got it, but be thankful that you do have it.
also remember that the guys with the "trucks" have nothing on you. even if yours is stock and they have the 6" lift and the 35's. yours is still better.
if you dont mind walking. park in the back row (or close to it) most high schoolers SUCK at driving. even in a parking lot when all the cars are standing still. be as far away from them as possible.
if you like to mud and like to show it off, thats fine. leave the mud on for 1 DAY and 1 DAY only if you drive to school. wash it off before you go the next day, or else your just showing off.
okay ive covered a few things...there are more probably. but most of all. dont spend too much time on your rig. really. school is way more important. life is tough
-Trev