i'm taking out my braces in a month after over 2 years, thank the lord because they were torture. some stuff to keep in mind:
at first, your teeth will hurt like hell. this is normal and the pain subsides in a few days, eat soft stuff in the meantime.
if theres any springs or whatever in your braces, don't play around with them. i had a bad habit of doing that when i had springs in my braces and they broke as a result.
if you get elastics, keep a bag with you if they break (they WILL break).
you'll be provided with a no-chew list saying you can't have stuff like soft candies, popcorn, gum, etc because they might "get stuck in your braces". in my experience (i've chewed gum and ate quite a lot of sour patch kids with my braces) i didn't have any issues, however it may be different for you. if something gets stuck in your braces just use a christmas tree-shaped brush or toothpick to get it out. don't think it's a good idea to bite straight into an apple tho, that would probably break them.
but yea, good luck to you.