Capo the 5th fret. Work on barre chords (they should be much easier with the capo at the 5th fret).
After you get to where you can make them OK with a capo at the 5th fret, move the capo to the 4th fret. Once you feel OK making barre chords with the 4th fret capoed, move the capo to the 3rd fret....etc...etc...etc... till you take the capo off.
Also, try using the SIDE of your index finger which is nearest the thumb when making the barre.
Every time you try to make a barre chord and fail, you are actually building strength in your hands. Keep it up - you'll get there.
P.S. try making barre chords on an electric guitar with light gauge strings and low action. Then work your way to an acoustic guitar.
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