Tips for my public vows at my wedding?

Tips for my public vows at my wedding? I’m getting married in 2 weeks. We’re doing private personal vows (thank god) but my fiance really wants to do something publically at the ceremony and we compromised on traditional public vows. The closer I get the more nervous I am and I’m worried I’m going to be overcome with anxiety on just saying a few sentences during the ceremony. I know I can say what I need to say but I’m scared my anxiety is going to take over. I could use some words of wisdom.