Can I update the existing wix cart for my e-store? If not, how can I update my Wix Cart icon numbers from my customize cart?

Hello Corvid Community,

I am creating a e-commerce website, where I have created a customized cart, where I am getting data from current Wix Cart and use the repeaters to show the data on my cart.

Now I have updated my cart items, but the Wix Cart Icon is still showing the old quantity,


in above picture, the total number of items are “5” (1+2+1+1) , but the cart button still show “4”, which is from original cart details of Wix Cart.
(1) How Can I update the no of items in Cart Icon?
(2) can I update my cart back to Wix Cart so that I can create the order list as per Wix APIs?