Can sprint replace my iphone or what?

I cracked my iphone 6 last month, and and dropped it here and there a couple times since then it is kinda badly cracked, so last night it was working normal, then i picked up off my bed and i see these colored lines going through it, i know its messed up from here, then these black spots appeared, so i start getting mad and so i pulled up the screen a bit cause i'm thinking its trash now, i may have damaged it more, but i soon realized maybe this can get fixed. Can it? And i'm on a contract from sprint that still has over a year left, i didn't have phone insurance, is there anything they can do, will they send me a new phone for a renewed contract or what.

No, since you don't have phone insurance this is entirely your problem to fix

With no insurance, you'll have to take your phone to a local phone repair shop. They MIGHT be able to fix it -- or not. If not, you'll need a new phone. Sprint will not give you a new one.