All i want is my family back, Help!?

hello all,
first off i’ll give you an explanation of my situation,
my now ex was with me since july 2011 we knew each other for about a year before hand. our relationship was strong for a long time, we were inseparable but we’re both hot heads and would have a fight maybe once a month pretty much from about the beginning, there was always a strong love and passion there though, i knew i wanted to be with her for the rest of my life! :3 still do!
long story short i’ve had alot of troubles with work, losing jobs over bullshit and then being unable to find work for nearly the last two years, the last job i had, my life and career was on track, we even had a son on the way! things were great until i lost that job, i applied for Income support but had very little money, barely enough for myself. (i did the wrong thing and kept $50-75 a fortnight to myself and didn’t tell her, i felt like i had nothing outside of us as a couple, it was still wrong i know.) we broke up for that when she found out (my son was born and it had been nearly a four year relationship at that point.) we lived apart for a while and got back together, i told her i could change, find a job, and that we would be Much better off in the long run! we stayed living apart, i was due to move back in last Wednesday 3 days after we broke up again. she told me that she doesn’t feel like i was there for her or our son, and i’m not lying here, i WAS, not as often as i would have been had i lived there but i would be there 5-6 times a week and stay over at least 2-3 nights and buy her and i take out at least once a fortnight with the last remaining dollars i had. she also says that she now feels like i’m a "dead end and that if she was to stay with me we would never end up anywhere and that we would always struggle.
what should i do? i’ve been doing all i can to get a job and provide for them, in the past, i’ve gone into hyperdrive with jobs since we last broke up. I’m losing my mind and the only thing i KNOW i want is to wake up beside her every day and have my beautiful family back!
please help! sorry for the wall of text, i wanted to try and give you guys an accurate as possible picture!

Bump! help please!