Should I include separate shipping costs on my pet product site?

Hello everyone! Not sure if I am writing in the right board, so apologies if I am not

I have a shop that has not started yet. My niche is Pets Products and Pet oriented Custom Prints (POD)

FOr Pet Products I have only one Vendor C J Dropshipping and for POD I have three Vendors. The POD vendors had ready made templates for our Shipping settings here so I am not worried at all.

What concerns me is C J because the settings have to be done manually but I am not knowledgeable how to do it because when I was connecting products to my store ( 153 of them) every item had almost a different set Shipping cost.

I had Covid and was hospitalized and in ICU for 35 days therefore my physical condition is not appropriate for me to find a way to deal with this as I believe its a major issue.

Presently these 153 products have the shipping cost merged with the cost of the item. But I would like to show my potential customers that there is a shipping charge.I don’t know if this thinking is correct as it might work the opposite way and discourage customers.

My question to you! Is my above thinking good? To proceed and create separate shipping, or remain like now and have the shipping costs hidden in the selling price!

If I do decide to go ahead and create separate shipping does anyone here know or can give me some ideas what would be the best and easiest way for me to do this

I am intending to sell in the USA and Canada

Best regards

Athan