No templates???

I’m very new to wordpress so I am sorry if this is dumb. Earlier today I was making new pages and I made a new template for my pictures called pics.php. It’s pretty much the same as the rest, only the sidebar command is removed so it’s a blank area for my pics. I had no troubles with using this as a template earlier today, but I just went to make a new page this evening and there isn’t a spot for me to select a template. Isn’t it usually right above the preview? Thanks!