M(19) feel like my partner isn’t doing her part in our future together F(20)

So we’ve been together since we were juniors in high school and fast forward we have a baby who’s about to be 1 soon and since then it’s been a big roll coaster of emotions and issues.

Not so say either of us is to blame we’ve both made mistakes and are trying to fix our relationship for ourselves and our family but sometimes it just goes sideways it feels like right now i’m the only one trying to put effort into our future. I understand postpartum is a thing i’m not trying to down play that but idk it just gets tiring, recently i’ve been saving to get us a spot for all 3 of us but when i show her spots within my income there not good enough for her and these are spots for $1200-$1300 so not cheap cheap i know if she worked we would be able to get a better spot but she always calls off her job at amazon and before anyone says she watches our baby, my in law watches the baby half the time.I can’t get mad at my girlfriend because i feel like she’s still in a kid mindset but it’s exhausting being the only one wanting to go further i already have 2 cars under my name no payments i want a spot now and ive told her if we can’t get our stuff together i wouldn’t mind getting a 1 bedroom for myself. There’s more to it but i don’t want to vent for too long.
**TL;DR;** : This is just a small summary of what’s been going on not trying to vent.