Finding myself single again.

So, after years of marriage, I am finding myself single again.  It wasn't something that I wanted, and wasn't what I planned for.  I had planned to be married to my soon-to-be-ex-husband for the rest of our lives.  I loved this man, and wanted to work things out.  Turns out, that he had had all of this planned for a year, and waiting until the last of our five kids, who lived at home, had turned 18, to tell me.  He told our children the week after this last Christmas that he was going to divorce me, but yet, he was telling me that we'd go to marriage counseling to fix our marriage, and giving me false hope.  I've since moved out, and am now on my own.  I'm trying to set everything up for myself, and working on being a strong person.  Don't know how well I'm doing, and I feel that I'm failing in a lot of ways.  Some of my friends say that I'm doing really well, but the truth is, I'm falling apart.  My ex cannot do the things that he said he would do, and so my rent check bounced this month, and now, my room mate is angry with me, and I can't blame her for that, however, it's something that is out of my control.  I suppose that my ex is trying to make his threat of seeing me in the poor house true.  


Now, I have to run to MD to file all of the paperwork, that HE said that he'd file, but he can't be bothered to do so.  Therefore, it leaves it up to me, again.  Whenever there's dirty work to be done, I must be the one to do it.  


Am just frustrated, and I hate having to always be the strong one.