Teen depression

Patient: I am a sophomore in highschool, and i just moved this past school year and i’ve made friends and such but I’ve been feeling really depressed or something of the sort and I’m not really sure why. Almost every other week i go to where i used to live (which is just an hour away) to hang out with friends and try to have fun i guess. I can’t really express how I’m feeling either, i try to talk to my mom about it and i just can’t explain how i’m feeling. It seems to me that i’m getting very sentimental too, like I’ll remember things that i did where i used to live all the time, no matter where i am or what I’m doing and it’ll put a smile on my face. That’s probably the happiest i get too, when i just remember my memories….