I feel defeated

So, I’ve come to the conclusion that i might have postpartum depression or something wrong.

My baby is almost 4 weeks old and every time I’m taking care of him alone i completely panic and cry. (When my boyfriend is at work, or my mom is at work [we live with my mom, cause I’m a teen mom] )

It come to the point where i just sit there and cry and panic when they leave for work, and after they leave it feels like the world crashed on me. I know my baby can feel that because he cries and cries all day long and i just feel so helpless because i can’t get him to stop, and i can’t do it alone. Does anyone else have this problem?