@ is used for inline links, that’s where your problem lies. You should try /link which will recreate the bookmark block and then you can just click on it once to open it.
Another thing to keep in mind is that the web clipper is supposed to be released in this quarter iirc. There might be some improvements for bookmarks as well at that point since they are related.
Seems like you are doing fine. This post was perfect for this exact category, for instance. If you have any question, you can always just ask in the chat.
What do you find complicated about the forum by the way?