We all have a love hate relationship with watermarks. They are necessary to show the work is yours, or to show your website address, but they can detract to the beauty of your photo.
So, you can simply add your name to the photo, use a nice font and your are done. However, you may find you choose a font that is the same as other photographers. I can show you how to tweak that font, to make it unique to you.
In 1 hour (or so) you could have a new watermark and learn how to automatically add it to you photos.
Below is just a couple of examples.