I majored in history in college but now after a lifetime of observation, I no longer believe most of what I was taught. History is written by the victors and I think you might agree that we've seen much fabricated history recorded in our own time.
As to my personal history, I feel sometimes I've learned nothing and am still making the same mistakes.
But perhaps there's still time:)
Absolutely, we are surrounded by, and fed, lies daily. But as for our personal histories, we've lived it and have the benefit of being able to react to it. Alas, many fail to do so, or lie to themselves about how their personal history so fail to benefit from it.