How do I get over the fear being a single parent.

I (27F) was recently left by my SO. We have two children together 8yo girl and a 7month old boy. He recently decided he didn't want this relationship anymore and left this Monday.I'm so scared of raising these kids on my own. I'm so scared of having to look for a job now and leave my son. I'm gonna miss all the amazing moments.I've been getting anxiety attacks all the time. There hasn't been one day this week I haven't balled my eyes out. How do I make them feel loved and like they weren't abandoned? I feel abandoned why wouldn't they?My daughter is already acting out. My son has been very moody also. He cry's a lot more specially at night and he never use to.All I keep thinking is what am I gonna do what am I gonna do!!!!! I'm so scared of being on my own. I feel I'm such a weak person and won't be able to give them the future they deserve.Help! Need advise. via /r/Parenting http://ift.tt/2yBoCoG