Life In 19x19

Thanks to all! This advice is very helpful.

Hello,

Would you mind having a look at the game below? During the game, I thought I was ahead after move 61, which connected my groups and created an isolated White group. I'm not so sure now, though. White gained a lot of territory on the left while chasing my groups around.

http://files.gokgs ...

I'm black. Any comments would be appreciated.

Thanks for all the replies! They've definitely given me some ideas to apply in future games.

I'm black. I thought I might have given too much away with the 3-3 invasion in the bottom right. Should I have protected there earlier?