Haha, that's the same argument I use in regards to the old testament.
My POV, is that it was written close enough to the time Jesus was around, (based on what we know) that if it was inaccurate, at least a few people would have been like "Whoa...Wait..No bro.." Yes, I know that most people at the time were illiterate, but there was more than one priest that put the Bible together. (I believe it had 43 editors, but don't hold me to that.) At least one of those guys would have probably mentioned "Uh...My cousin was there..And that definitely didn't happen like that." Additionally, the priests would verbally share what was written with those around the towns. If something was VASTLY inaccurate, there likely would have been riots or at least stuff worth writing about. That's just part of why I believe, and I'm not gonna say I never have doubts, but I do believe. You don't have to, that's a very personal thing. I do though, and I've thought long and hard about every reason I believe. I deconstructed my faith and put it back together. Hopefully you can at least respect that.