If you're not making mistakes, you're not doing interesting stuff. How many work hours do you think you have left in life? 500,000? Sounds like a lot? Do the math. What are you going to do about it? Leave a legacy or just pass?
The best entrepreneurs make a lot of mistakes. Look at Morten Lund. Felix Dennis. Branson.
I talked to some young Internet entrepreneurs today. They asked what I thought about trying something different. I wish they didn't ask. I wish they just did it. If it doesn't work, they'll know withing days. They can re-group in 5 minutes. It's wonderful. The Internet. Truth. So fast.
Keep up the pace. You don't have forever.