My take is that you are afraid to fall and get hurt. eliminate that and you will be more confident.
I'm going to take this advice as I was falling a lot while turning toe to heel side when going at a speed, and ended up falling on my butt resulting in a lot of bruising. Going to get some tailbone protection and just keep trying to get used to speed for my next trip.
I'm pretty sure I'm rushing those turns when I am going at speed, because if I take myself very close to perpendicular on my toe side prior to initiating turns, they go a lot smoother as I take it slowly and shift weight correctly. Hopefully I learn to deal with turning with a little bit of speed soon.