Yes. Don't take last minute tips.
Here's why I think that: The reason people get nervous when performing is because they feel like they are not prepared, or they fear that the audience won't like the performance.
If you're already feeling not prepared, trying to remember new tips isn't going to help you feel more prepared. It'll just make you feel like you're even less prepared than you realized.
If you're worried that the audience won't like the performance, then the things you need to learn will require more time to learn than anything that can be called "last minute tips".
Learn to trust your skills and go with what you are already the most comfortable performing.
