In Need of Advice

So this may be a long story, but I need to get this off my chest and get some advice. I'm 25, live in a very conservative state, and since I was about 13 knew I got aroused by men, not women. All through high school and college I fought these feelings, trying to pretend that jacking off to gay porn didn't mean anything, and that I would get a girlfriend any time soon. Obviously that never happened, and I've still been hiding who I really am. I live on my own, but am somewhat dependent on my parents, who help me with medical insurance, and car insurance. They are both very religious, my dad being more strict to Christianity than my mom, and practice regularly (attend church, lead bible studies etc.). Both of them are very hard to get a read on their feelings about LGBT issues. I have heard them say things like," why can't they just leave marriage alone", about the legalization of gay marriage. I've also heard them talking to a friend from the church, her mom issues marriage liscenses and they were talking about a go find me to help her not have to issue licenses to LGBT couples, and they seemed to support her cause. But I have never dared to bring any of it up to them, for fear of alerting them. None of my friends know, or if they suspect they haven't ever said anything, and only one friend in our friend group is openly gay. He came out last year, and since he lives a few states away from us all, none of us see him that much. My friends all seemed very supportive of him, and I don't think anyone acts differently towards him. Now comes the part that's hard to write. I have been struggling with the idea of coming out, since around the time my friend came out. I see how happy he is, and know that all it would take it being honest and true to myself to be that happy. But I have been seriously afraid of being disowned by my parents, who I am very close with and love, and possibly even my sister. On top of that I don't know how my friends would treat me going forward, and I don't want things between us to change. I've never had feelings for any of them, but I do think that me admitting I'm gay would make things awkward between us. I've had so many nights where I would lie awake and think about the ways to tell someone, a friend, a family member, but I always give in to the fear that they will reject me. Does anyone have any advice for me? Who should I tell first? Should I even tell my parents? How should I bring it up? Also, at 25 am I too old that it is weird I'm still a virgin, or is this normal? I see a lot of posts about gay men having sex a lot earlier than 25, and most of my straight friends have had sex, let alone kissed someone, and I'm left far behind them. I just feel really alone, and being cooped up with these thoughts and emotions all day is wearing down on me, I feel like I'm close to breaking.Thanks for anyone who takes the time to read