I plan on having a natural childbirth, so my advice might be a bit biased
But seriously, reading some books and looking up youtube videos by Ina May Gaskin totally changed my perception of pain during childbirth!! From what I learned from her, my advice would be
-Make sure you feel safe. If your body starts getting an adrenaline rush it can actually stall your labor process or reverse it. As mammals, our bodies will simply not give birth if the mother's instincts tell her she is in an unsafe environment. If you need to be upfront about what you need (female staff only, minimal vaginal exams, etc.) in order to not have panic attacks, do so!
-Go with the flow. I plan on trying out any and all birth positions until I find one that feels right. You might find one (squatting, swaying on a birthing ball, maybe walking) that really helps with contraction pain. One thing about the epidural is that you are usually confined to the bed after you get one, and I know that would freak me out way more than the pain would! I like to be able to move around, and all the friends of mine who have had them have told me stories about their legs accidentally flopping off the bed and having to ask others to move them, or having to get a catheter in so they could pee. To me, that would really freak me out.
-Remember that labor ends. It won't go on forever, no matter how you feel a few hours into it. Try and just breathe and think about your baby and how nice it will be to hold him/her! I've heard that smiling and laughing during labor is a natural pain reliever and can really help improve your perception of pain! I plan on trying to have normal conversations with my hubby and maybe watching a funny movie in early labor to distract myself and not focus too much on contractions.
-Think about writing down some affirmations to read to yourself during birth or even to say out loud when a contraction is happening. Affirmations are things like "My body is dealing with this contraction really well, and it will be over soon", "This is the way my baby is coming into this world, and it's my job to help him/her do it", "This really really uncomfortable, but my body CAN handle it and I WILL get through it". As someone who talks outloud to herself during stressful and scary situations to get through them, I know this will really help me deal with the pain.
BTW, what I said about epidurals is totally my opinion. Obviously some stranger on the internet isn't going to change your mind if you are set on getting one. But I wouldn't go in with the mindset that you aren't going to be able to handle labor at all, because you never know!!
You are stronger than you think you are.