I first "came out" at 4 to my mother. The next person was my sister when I was almost 54.
I set myself up, on purpose, by telling my sister that I needed to talk to her about something but not in the phone. I showed up at her place the next day for a two day visit. (750 miles from home)
If you want to come out, and you have someone you can trust completely that you see/talk to frequently, try that. They will dig it out of you. Make sure you have tissues, you may need them. I sure did. The weight lifting off was unbelievable.