I'm going to tell a girl I don't want to talk to her until closer to our date
Why don't you want to talk to her before the date?
If I talk to her, I'm more likely to make mistakes with her.
I can tell the date is making you nervous. But you can't really ignore her all the rest of the time. She probably won't want to even go on the date if you do that.
She will still go.
Just keep talking to her. It is odd to ask someone on a date, then cut communication right before it.