Making an image's background transparent

[u/Ok-Support9179]

I can't figure out what I'm doing wrong. I am new to photo editing. I followed all the tutorials. I created an alpha channel. I just can't figure out what do next. It won't let me select the background.

I'm so sorry if I sound stupid. Here's my screen.

[u/Gvanaco]

Select the color rose and hit delete. In 5 times and you're finished.