It's the @ in the code of the link that mess things up, most people write it before the code and this is why. See what it does:

<a href="https://tiffany1567.dreamwidth.org/20113.html">@myjournal</a>

looks like this as you wrote it:

myjournal

and this works when you put the @ before the link:

@ <a href="https://tiffany1567.dreamwidth.org/20113.html">my journal</a>

looks like a correct link:

@ my journal