Just to share my timeline (which is still in progress) - it's been about 2 years since the series of traumatic incidents. I have had symptoms varying in severity since then. About a year ago they got particularly bad. I saw a counsellor for 3 months, then stopped (he left town), then things were okay again for a while, now been seeing a therapist for 5 months and still going. I think every bit has helped in some way, and having a break can also be useful. I don't know when the end point will be, but I do feel I'm getting myself back gradually.

I'm sure everyone's timeline is different.