Need help with custom tracking

Hello, I need help with creating a custom shipping provider. I followed this website (https://www.zorem.com/docs/woocommerce-advanced-shipment-tracking/setting-shipping-providers/#adding-custom-shipping-provider) for instructions and is just afraid that I might screw it up or whatsoever. This is what I did to the Tracking URL (https://imgur.com/a/EvFgw84) though I feel like it’s wrong in some sense as I am fairly new to this and sorry in advance.

1) When you meant, shipping provider allow to concatenate the tracking number in the URL as a parameter does this means that the url of the website would be something like, https://www.tracking.my/poslaju/456798 . Is this what you meant by shipping provider allow to concatenate the tracking number in the URL?

2) %number% – this parameter is the tracking number from the order. replace the tracking number in the tracking URL of your carrier with the %number% parameter and use it in the custom provider link. I have a question regarding this as well, the custom provider link is the Tracking URL right? So, would my URL be smtg like this, https://www.tracking.my/poslaju/=%number% ?

Sorry if the questions are dumb cause I checked your yt vids and there isn’t a clear idea on how to implement custom shipping