as a former otr driver, i can relate. there were some days i couldnt hit the broad side of a building with 2 hands and a map, and other times i could blind side a 53' trailer back up a one way street in downtown chicago and thru the garage door to hit their dock in one shot. makes one kinda cocky. when time came to reload at another facility, that had about 20 doors and no other trailers to jockey around, i couldnt hit ANY spot for the life of me.
as for tips tinsu, if you put one hand on the top of the steering wheel and turn towards the left, trailer will go right. hand at the bottom of the wheel and turn wheel towards the left, the trailer will go left.
as always take your time, get out and check as many times as you feel you need to. if anybody behind you complains about why your taking too long, they either can get out to help (most will) or they should have left earlier to get in front of you. dont try to hurry because you (think) are holding someone up.
the longer the trailer, the easier to back up. they dont turn as fast