1. Randori is free practice.
2. You have the opportunity to try and implement what you have learnt in a more competative way than uchikomi.
3. Therefore, it doesn't matter if you don't get it right and get thrown, it is not shiai!
4. If you try something and it doesn't work, you can have another go and try again.
But despite the fact that I know this, I still tense up in Randori and concentrate more on what my partner is doing than what I'm doing!
I definately don't have a fear of falling. I'm only 5th Kyu in Judo, but I also have 10 years of wrestling experience, so I really don't mind getting thrown. Maybe it is an ego thing in my subconscious mind, but I don't know...
The problem is that I don't want to make mistakes. I only attack if there is a clear opening, which obviously means that I get very few attacks in. I know it doesn't matter if I make a mistake, but I still do and I get extremely annoyed at myself!
I'm pretty sure everyone went through this, so I would really like to hear how you got over that.