It's so very true, the passage of time is your friend. I hated reading that in the weeks, no months, following DDay because time just seemed to be moving sooo slowly.
I found the more I could focus on me and our children, the better I felt and the quicker the days passed.
It occurred to me the other day that I have far more good days than bad now. Also the 'bads' are not any where near as bad and far easier to recover from than previously.
I don't know how long it took. I'm sure it was just a slow progression. Hang in there during those 'bad days'. Things will and do get better.