Hi Pangy and welcome.
I'm so sorry for the loss of your father and the feelings that have come up since then. Losing someone you're close to always hurts, but facing some difficult truths, as you are, makes it even tougher.
The good thing is, though, that you're reaching out and see that you're strong enough to work on yourself and getting through this.

There are many folks here who can relate to what you're going through and can offer some advice and support.
How are you doing today? What are you doing to take care of yourself right now? You've already done something great for yourself in coming here and looking for help.