There isn't a timeline,its a bit of a rollercoaster ,things seem to be getting better then something triggers you back again,there are things you fear,birthdays Xmas anniversary's which often turn out worse in anticipation than the day itself,and then the things you don't know will hit you,a song,a comment,anything.What I can tell you is that over time those dips get shallower and easier to climb back out again.People have expectations of when you should be " back to normal" and some people will tell you so,but there really isn't a normal time.