I haven´t come out yet (21), but Im thinking about telling my 3 closest friends and Its gonna be hard because they are not homophobic and I feel guilty for not telling them, but I was just not ready and still arent 100% (but close). Also, I have 3 cousins and 1 of them is Lesbian (her parents, sisters and me know), and I have also not told them although I definitely could. My parents on the other side and my grandma (my favourite person) will not take it well at all, so I guess that will be hard.
Something I noticed about coming out is what makes it more difficult is not really people knowing about you but the pain it will bring to the ones who are not so homo-friendly