You can always do the alternative version of a barre chord, but I’ll see what I can say to help you figure the actual barre chord. Try applying more pressure between your index and thumb on the neck of the guitar. It’s probably gonna hurt, but as I’ve said before, to not throw out your wrist in doing so. If it starts hurting, stop and take a break. I have small hands too, and that’s just what really helped me to get there. I mean it is gonna hurt for a bit, but you should start getting used to it. Just for the sake of trying, you could try practicing them with a capo higher up on the neck of the guitar since the frets are closer together. Another strategy I’ve heard is to place your fingers on the frets (2,3, and 4) then eventually work up to putting 1 down to bar the fret.
If none of that works, there is an alternate way to playing barre chords (you still have to use your finger but to hold down two strings instead of 6)
I use it this shape usually when my fingers get tired, and the great thing is it’s obv gonna work for every and any barre chord you can’t play.
I’ve seen a lot of guitarists like Privettricker (I love that guy) use this same shape and it generally sounds the same (and if you already have been using this shape, it’s okay!! I envy people who use it because I hate barre chords but can hardly do this…)
Throwing a little music/guitar theory in it, it works the same for the parallel minor (without the 2nd finger), the 4th major and it’s parallel minor as long as you keep your 1st finger in place…I love lookin at it. Just looks so fancy…
Anyway, I hope this was helpful to you, and as always, if you have any more questions, or need me to clarify anything, the ask box is always open, and I’ll answer as soon as I can