30 weeks, nervous/anxious vent (long)

So I am writing to hopefully get some anxiety off my chest and some advice. I am 30 weeks today with our 2nd boy. Our first son is 3 1/2. I feel TOTALLY unprepared and I get so anxious when I think about the time left until baby gets here. We've been going through some financial hardships, and as of two weeks ago my husband is no longer working. He is starting his own business with a good friend soon, but it won't be bringing in much income for a while since they will just be starting out. I am the income provider for us at the time, but my job is very physically and mentally demanding (I am a behavior interventionist for autistic kids). My home is a disaster, I have prepared nothing for when this baby gets here and I don't even know where to start this time. I feel so out of my element and don't know how to do any of this at times. My husband has severe clinical depression and anxiety that at times has been very difficult. (He is taking medications)

I guess my point to this post is, is there any other mothers out there going through anything similar? Any advice or even just kind words would be appreciated..