You ask at what point is something a habit versus being a problem.

When it interferes with normal daily activities, for one, and it's interfering with your sleep and free time, so that definitely qualifies.

Also, when it causes you unease and is something you'd feel uncomfortable sharing, that's also a sign it's worth discussing.

I have a habit akin to yours that started when I was young also, and I've found it's directly tied to anxiety: but as my coping skills increase and anxiety decreases it's a habit I've gotten out of for the most part. It's definitely something you can stop with help so as to free yourself up for more useful and fun pursuits.