I need help!

I just want start with love my parents, but later, I am feel depression. I thought was about fact I am 20 years old and no job but today a get my jobs and I going to school. However I still feel like I am depression, and I think more fact that I have three sisters and we been treated different I a totally and major in ece. I like 3 years part. A) talk to parents 
B) talk to a doctor 
C) it just part of grow up