Hey Tara, thanks for reaching out and hope all is well. 🙂
I see what you mean!
Quick question: what do you mean when you say that you are trying to add the calendar to the main menu? Does that mean you are trying to add a list of events to your site’s menu/navigation or are you trying to add a link to the calendar in your site’s menu/navigation?
Also, will you please try heading to Events > Settings > Display, selecting the option to use Tribe Event Styles (screenshot), then saving your settings? That should apply the calendar’s default styles into the site and clean things up a bit as well.
Thanks!
Geoff