Don't give up on it. If you know anyone local to you who plays get them to check your guitar it may be that it needs that set-up that someone already mentioned to make it a bit easier.

You may find a set-up makes all the difference in the world as you won't have to apply a force commesorate of a steamroller against the strings (if this is what is happening at the moment), then your wrist and hand can relax and you should be able to bend your fingers better on the chords. If you do decide to change the size of your guitar, make sure you get one that can be adjusted otherwise you could be in the same situation again.