Vent!!!

I'm just a little depressed I'm 8 weeks with my second child and I have a 2 year old and I'm only 20 years old I have no job I'm a stay at home mom and my husband works a lot I live with my grandparents and he lives with his parents we are on hard times ... I jut can't enjoy being pregnant right now we had a miscarriage in December I was 412 months with a baby boy .... This wasn't my dream I had so much potential in high school college etc now I feel like it's impossible I'm so ashamed and embarrassed.... 20 years old with 2 kids and no college degree I plan on going in the fall but it's better said than done my husband has all the stree on him ... 2 carnotes other bills and he's trying to pay for school ..... I'm just depressed all I do is cry and sleep I'm barely eating because I have no appitite I'm just miserable I haven't been out the house or anything I just wanna sleep what's wrong with me