You can't look back; you have to keep looking forward.

You need to keep looking forward; don't ever look back.

Looking back isn't going to help you. Moving forward is the thing you have to do.

I try to avoid looking forward or backward, and try to keep looking upward.

If you aren't in the moment, you are either looking forward to uncertainty, or back to pain and regret.

I'm looking forward to it. I'd like to be married.