I wanted to know the size of the market, to learn from competitors' successes and mistakes and to understand what potential clients want.

It should have used the time to learn from their successes and mistakes.

"I believe I've learned from my successes and my failures."

Once you're the best, you need to guard against shutting down this quest to learn from both your successes and failures.

You can learn both from your successes and mistakes.

You can learn from their successes and from their mistakes also.

By doing that we can all learn from each others' successes and mistakes.

I imagine the shadows are learning from their successes, though.

You can only learn this from your own successes and failures.

I learn not only from other people's successes, but also from their mistakes - and my own.