Linking images in my html code

(Disclaimer: I am not a coder but learning some html to have better designed emails). I would like to paste my ready code into Constant Contact's html email feature but having problems linking my images. I took the library path "https://files.constantcontact.com/" and attached this to all of my images' code, but when I upload my images to my CC library and paste in my code they are not linked. I realized this was because the links don't match and that CC actually changes my image names (support has said it was because of some metadata something). Here is an example:

My image name: 9e268511ee2e099f990f782e7ffaeb58.png

My code: <img alt src="https://files.constantcontact.com/9e268511ee2e099f990f782e7ffaeb58.png" style="border:0;display:block;outline:none;text-decoration:none;height:auto;width:100%;font-size:13px;" width="123" height="auto">

When I go to my CC library, the name looks like it matches, but the link is this: https://files.constantcontact.com/930c4ca6001/c3bf3603-e8fe-4120-9f5b-ca76c861eb99.png

My conclusion is that I have to manually reinsert every image using CC's "insert" button (and make sure I keep all of the style attributes, etc that I want). This has worked fine but it seems super tedious and inefficient. Is this really the way? Is there something I'm missing?