Am I addicted to the screen?

How do I know if I’m addicted to the screen? I keep thinking that the screen in the only fun thing I can do. Obviously I’m gonna have preferences over which fun things I find more enjoyable. But I don’t think anything else is fun. Like reading or drawing or painting taking a walk etc. I see screen as my only source of comfortable happiness. It’s the one thing I look forward to everyday. I catch myself skipping work to go on my phone or the tv lots too. I’m very strict with my diet though as I never have any junk food throughout the week. So is it still discipline or addiction?