Re: Ukemi worried
First of all, first post. Hi all.
If I recall, I didn't actually take ukemi from a live throw until my third practice. For a while nobody will throw you terribly hard, but after maybe a month or two of regular practice, a good nage will be able to throw you at the edge of your comfort level. You won't improve unless someone pushes you.
I was fortunate enough to spend the first few months at my new dojo practicing in small practices with very high-ranking people. I've been going for about a year and a half now, and I'm doing breakfalls (although admittedly poorly), and I would say that my rolling is almost like walking to me.
Just be willing to be pushed beyond comfort, and your ukemi will come along surprisingly fast.