People nowadays are often too preoccupied with abstract concepts. In my own experience, I started following Leo's content when I was 18 and became obsessed with abstract ideas such as enlightenment.
However, looking back, I realize that at that age, it's crucial to gain as much experience as possible and try out different things. While spirituality is an essential aspect of life, it should be devoted to after a person matures and wants to elevate his life to a higher level. (PS; watch Burning Through Karma - How To Exhaust Material Desires)
I currently reside in a third-world country where people are much more social, and despite the poverty, misery, corruption, and crime, hardly anyone is depressed. It would be beneficial for those who feel depressed to travel and explore other cultures, experiencing different ways of life. Sometimes, taking a step out of your own perspective can help put things into perspective and provide a new outlook on life.
Instead of getting lost in your thoughts, try getting some "real" experience and seeing the world from a different angle.