Advice/ rant idrk.

Hey mamas, im due w baby #2 in just a few days and have finally decided to stop trying to keep this relationship with my bd that fell off a while ago .. Ive sat in this relationship and done everything i can to make this man fall back in love with me and its just not there on his end .. Im heartbroken that my high school sweetheart and father to both my children just doesnt want this family and doesnt want to try to make things work .. Our lease ended nov 30th and he decided to move back in at his dads which is a disgusting trailer i refuse to let my kids grow up in and i told him we need to find a place and he needs to start working which led to the excuse of him making me leave .. With no where to really go .. Im only 19, my mom and her entire side of the family blocked me and my dad took my sister and her newborn in and they sleep in ths 2nd living room, now im also living here with my dad on his couch .. Its unfair, its sad, espically since im about to have this baby literally any day now .. Im at a loss of words and a loss of what to do .. Me and my sister know we will have enough to get a place by august 2020 but i just dont know what to do in the meantime .. Im only 19 about to have a 2 yo and a newborn and my sister is 17 with a 5 month old . how do i start my life again, as i work and child care.. How do i even begin to start making money to get my family on the right road when i have nothing to start with .. I know i was foolish and i should have learned with my first child but god i am so in love with that man .. I know now i deserve better as well as my children but i just dont know what to do 😭😭 i want to breakdown and just give up but i cant . i have to push and i have to find away . has something like this happened to any of you mamas? Whats the best advice you can give me .. Sorry this might be all over the place i just have to get it out somewhere