Hi Twaltz837

Try bringing your fretting hand elbow in towards your side so that your fretting hand rotates on the fretboard.

You want to play barre chords with the bony side ( the side next to your thumb) of your index finger and not the softer part.

Try barring across all 6 strings with the index finger, bringing your elbow into your waist and see if you can get all the notes to ring out. If you can then add the ring and pinky finger notes to make up the minor chord.

You can also put a capo on for instance fret 5 and try playing the same minor barre shape, having the capo on will make barre chords easier as you won't have to put as much pressure on the strings.

Once you can play the barre chord on fret 5, move the capo to fret 4, then 3 and so on until you can play the chord on the first fret.

If you want you can do what aliasmaximus said and omit a note or 2 you'd still be playing the minor chord just not as a barre. The same can be done with all barre chords. For instance for an A minor chord you can play these two variations:

e ------×-----------‐--- e -----5------------

B ‐-----×-------------- B ---‐-5-------------

G -‐---5---------‐----- G -----5------------

D -----7------------‐- D -----7-------------

A -----7-‐------------ A ‐----7-------------

E ------×-----------‐--- E ‐-----x--------------

The second one is still technically a barre chord but is easier than barre across all the strings. You can also play the second shape and have your thumb over the neck fretting the A note ( I find this harder). All are A minor chords and sound very similar. :)