23 years old 4 week old and 19 mth old no job or home please help need advice?

I am 23 years old i just had my 2nd son on december 7th 2010. i have a 19 mth old as well .I am currently unemployed and without a place for my kids to lay their heads im livin from place to place night to night sometimes i hav my kids stay at my friends house and i sleep in an abandonded apartments at night. I am looking for a job but it seems like noone wants to hire me.It all started when i lost my job after i had my oldest childi was doing the same then i used income tax to get a place but lost that place by the time he turned 1.Then i had got pregnant again unexpected i do not believe in abortions so i had to do what i have to do i am just tryin to get on my feet again and make a good life for my kids what am i doing wrong in tryin to better myself.I do not want any judgement or negative comments i am doing my best to try to provide for my kids they are all i have i have no family my mom and dad walked out when i was 2 so i am all alone and dont want to walk out on my kids either please help me or give any advice about what i can do please im desperate and wanting to be able to provide for them a legal way. please any advice is greatly appreciated.