**Long term success with barre chords comes from repetition and proper form.**  Be sure your thumb is directly behind your barre finger when you form the chord.  To make the repetition part more enjoyable by allowing for success as you build strength and refine your technique, you might consider some of the ideas below. 

To make things easier (especially with the F Barre chord) as you build strength, try tuning the guitar a half or whole step flat which will reduce the string tension and make it easier to play barre chords.  If you don't want to play your songs a step flat, then put a capo on the first or second fret (depending on if you are a half or whole step flat) and this will make it even easier to play a full six string F Barre chord because the fret becomes the nut and is much closer to the next fret than the nut is to the first fret.

Lighter gauge strings will make barre chords easier to play as will a proper set up on your guitar.  The lower the action, the easier it will be to play barre chords.  

If you try different guitars, you may find one that is much easier to play barre chords on.  Of course an electric is easier to play than an acoustic where barre chords are concerned.  But various acoustics have different construction characteristics which make them easier or harder to play barre chords.  

The nut height makes a big difference when it comes to the relative ease of playing an F Barre Chord at the first fret.  If you try this with a bunch of guitars at your local music store you will find differing degrees of tension required to cleanly fret an F Barre at the first fret.  

If a new guitar is not in the cards, try lighter strings and de-tune half or whole step and use a capo.  Soon you will be playing the F barre chord as easily as a G chord and you can gradually move to heavier strings and/or the tighter tension of standard tuning.  **The idea is to gradually build strength while successfully playing the chord - as opposed to grappling with the frustration of not being able to cleanly play the chord you are trying to play.**  

Good luck.