What is it exactly that you don't like about your voice, if I may ask?
It's hard to help or give specific advice otherwise.
Though, should it indeed be because you have heard your voice (through audio/video recordings and the like), then I will tell you: It does sound completely different than how you yourself hear it. It's because your ears (and biological terms to be inserted here...) are close to your vocal chords. You'll indeed hear it differently than someone else.
I too don't like to hear my own voice, and it is indeed not uncommon for people to dislike their own voice. mostly because I think it's something you're not used to. Others are, they've been hearing your voice like so all the time. It doesn't sound weird or strange to them. But you've heard it since birth completely different than others. You've grown accustomed to it, gotten used to it.
And then you hear it sounds nothing like you thought it was sounding. It can be a strange, and unpleasant experience.
If this is just simply the case, and not some speech disorder, it's something you would have to 'live with'. Some people deal with it, as mentioned in a previous comment, by not listening to any recordings of themselves.
I however simply just don't (try to) pay attention to it. If I do hear it, it'll still sound weird, but I've accepted that's how it sounds like to others, and I hear it differently.
Hope this helped in some way.