Why do I get distracted so easily?

Hey everyone...I'm a student and a freelancer, but whenever I try to sit down and do something productive.. I get distracted very easily. For ex- I pick up my phone and then forget why I picked it up... I end up doing useless things like doomscrolling..chatting.. or reading group messages. By the time I realize it, I’ve already wasted almost an hour on these things.

I feel really bad about it, and this happens to me a lot. I don't understand how to stop this or how to focus better on my studies and work. Is anyone else facing this problem, or is it just me??? Any advice would really help. Thanks for reading!!