Are you using an electric guitar? Have you had it 'set up' at your local guitar store? If you're trying to learn barre chords on an acoustic, fo-get about it, you need to learn on electric. If you're using a used or older electric, you may find that getting a 'set up' done at your local guitar store will put the strings closer to the fret board and make barre chords easier.

Go to a big guitar store with lots of selections for electric guitars - the necks are all different shapes and sizes - try them all and get some advice from the pros at the store on the best neck for your fingers.