I had an absolutely awful teacher throughout middle and high school where all we had to know in History class was our own country's history and world war II. I realized today that I know nothing of this world I live in and that makes me feel genuinely stupid. I would like to learn but I'm also a student know and this means I don't have time to read the whole bookstore. Is there something more fun? In school it was a chore and you do your chores because you must and that's how I learned what I know but now it's not a chore and excruciatingly studying history won't make me like to read it.
So...?
Wikipedia is a surprisingly good start to read more about history.
I say this with the acknowledgement that Wikipedia is also simultaneously suspect in many ways, but if you go into reading Wikipedia with that knowledge, you'll actually be well primed to understand the mentality you should be in to criticize sources.
Read the histories, but read them critically. Check their sources. Check out the bibliographies and their foot notes. And plumb the depths of what the internet can offer with regards to history.
While Wikipedia can't offer everything, for someone just starting, it can be more than enough.
YouTube crash course world history with John Green. Enjoy!