Re: Ukemi worried
In my opinion, ukemi is something which can only come over time. That is with practice and learning it at your own pace, rather than people trying to throw you across the mat and you can't even ukemi yet. In other words your training partner (whatever level) should always come down to you and not the other way around.
I remember reading Kisshomaru Doshus book once and in it, he stated that ukemi will take a minimum of 3 years before a basic understanding is achieved (something like that anyway?)