and yes, is about regret, I´m studying now a degree on Acupuncture and is hard to me realizing that my father (how did you know that was my father?) could have had a different treatment, that I could have actually supported him through a Self-forgiveness process instead of being feeding the systems using the psichiatric pills that ended with his life, I feel badly guitly that I was not strong enough to pursue this homeopatic and psicological support on him and now I want to start the Self forgiving process so I can help and support other people that is suffering the same way my father did, and also other ways
One of the things that is important to eventually realize is that every being is self-responsible, so, there's no way to tell if you 'could have' done something within the millions of different ways the events 'could have' played out. The reality is that it happened the way it happened and your father chose for himself.
Forgive yourself for the guilt that comes with wondering about 'what if I had done something differently/been more/done more/tried harder...etc' because the guilt will limit you and sabotage you and that will result in two lives lost.
The best way to support others is to support yourself unconditionally, that's why this process comes from a starting point of self-support and not a starting point of supporting others. This is about YOU Soy, and about what you are willing to give yourself as Life. Are you willing to give yourself Life? Guilt is not Life, it exists only as memories of/as the past, and has no Life. Life only exsts Here, in the present moment- so it's about learning from your mistakes, changing yourself accordingly, and letting go.