my advice (and I should listen myself haha)
prep work, don't try to cut more than the blade can handle, less than half the width seems to be a rule, some for 1/8. also good templates. I like atleast 1/2" thick templates for routing with
use multiple cuts, depending on the grain orientation you may need to approach the curve a certain direction. somewhere on stew macs site is a diagram of which direction to route from to avoid kicking and or tearout.
slow down! routing is fast but don't rush it, you just make mistakes. if you take your time, you probably won't mess up and have to start over (trust me I know)
practice!
this is