Author photo

I have a question about adding an Author photo.
I already watched the video of WPbeginner, but I am still clueless about how to install the author photo correctly.

I would like to add my image and name (Jan Ruben) plus the date just beneath the titel of every post.

Here is an example of what I would like to create. I hope it is possible with Colorlib sparkling theme

hey there

You have to use Gravatar feature which is default author photo service in Wordpress: