What you're experiencing is normal. What I do is scope out the potential station for access if at all possible; most of the time it is not. If I get to the entrance and it looks too tight, I will probably bypass the station for another. I always look for a good exit from the station, too, and that sometimes requires me going around (U-turn). Of course, it's common to hold up some traffic and that bothers me most of all as I try to be considerate of others. Regardless, don't let traffic put you in a situation where you make a mistake. Just take it slow and easy until you get more comfortable with your rig.
--2005 F350 Superduty Crewcab, 6.0, 4wd, short bed, 3.73 gears
--2016 Montana 3711FL, 40'
--SOLD 2014 Wildcat 327CK, 38'