Walter Jackson, 3rd wrote:
I do well with everything except the rolls. I'm very tall, not used to rolling and terrible at it. I seem unable to progress because the rolls hamper me. I can't even move on to a higher belt.
I am big (6' 4" 215 lbs.). It is a long way down.
You can't practice Aikido without the ability to roll and fall. Ukemi isn't the easiest thing to get used to. But, with patience and practice, you can get good and even enjoy it.
Physicially, relax and breathe.
Mentally, think of the body as a ball, a circle. You may be running some negetaive fantasies which send messages of fear to the body.
Hang in there tall guy, you too can get this.