Does anyone else feel lonely? What can I do?

Cotton

My husband is a great hubby and father. But he leaves early to go to the gym, and works late a lot. (yes I'm sure he's working). My teens get busy with their lives, and my younger ones are enough to keep me busy. But I still feel lonely. We're on a tight budget and usually don't have time to go out. I think I need some better hobbies or something. What do you do?