No! Get out there and practice on some boxes. When you are comfortable going 90 on to boxes, slowly progress to rails. If you try to 50-50 a rail with limited experience you will destroy your McNuggets.
If it scares you on a rail, do it on a box, as people above have mentioned. Try the smallest box in the park, one really low to the ground. If you can't get that after a bunch of tries, then get your friends to yell at you until you do it.
"i cant rap my head around the fact that skiiers do trick" - L0gic
"So wait, do you want "how to fix this kinda properly" or "how to fix this using nothing except what SteezOnSkis12 has at his house, which we have to guess at" - if it's the latter, try melting some of your mom's dildos on the stove and filling the gap with that." - rozboon