It is one of the most difficult deaths to grieve. @Beesummer
I have lost my father but not to suicide, but siblings.
Sorry about your friend @amber22
https://jss.org.au/what-we-do/mental-health-and-wellbeing/support-after-suicide/
Not sure if there are things closer to you but this is one service I know about.
I think they do their best. For me it was triggering as though the religious side of things is not pushed, I was still processing institutional religious abuse. But like the churches started up most social work things now taken over by govt or other secular, it seems they are first in this area too. The taboos around talking about the topic are huge and appropriate responses from people are rare, in my experience.
My sister passed nearly 40 years ago. I have memory objects that symbolise their lives or the lives we had together. We were separated a lot too for lots of reasons. I am more grateful for the opportunity to remember them and discuss this difficult topic than triggered.
Journalling can help, about feelings and the life paths. The most important thing is not to take it personally. It was his life.
I know one man who completely turned against his father who suicided and does not have grief feelings at all. More contempt. I am not sure that is a healthy way to navigate it. I tried to talk about the circumstances, but he did not care.
For me the painful feelings have receded and I have done many different things written poems etc. I have a broach from her that is pinned to a jacket. When I see it I acknowledge her in my mind but am not triggered.
Take Care
Here if you want to talk.