Guitar strap length

I have spent an embarrassment of time trying to get my left fingers to work with me. Even though I am faithful to general exercise my wrist was tiring and my hand felt contorted. Yesterday I had a fortunate accident, the strap broke. I always prefer to stand so I purchased a new one directly but was concerned when I got home and noticed it was shorter. I tried it and to my delight the difficult bits became easy. Apparently, for me, it is much easier if my wrist is not too low.

Ya that's a comon mistake. A lot of people attach there guitar way to low. Personally, the health of my wrist and the comfort of playing is more important then style :)
A good place to start is to have your guitar at the same height standing up then when your sitting down.

Yes, it's definately much easier to play if you have your guitar up high. The only reason to have it hanging low is if you're trying to look cool, I would say. :) Most guitar players with their guitars hanging low (Like Slash and Zakk Wylde) rest the guitar on their knee or something similar when they're playing complicated lead parts.

Barre chords are especially difficult to play with the guitar low (with your index finger barring). If you still want to keep your guitar low I suggest you play barre chords like Jimi Hendrix would do, with your thumb fretting the bass note. I even play power chords like this (with thumb on bass note) sometimes when I'm standing, as I find it much less painful for my wrist.

I want to be able to hang it low....but I just can't. My wrist has to bend way too much and it's painful to play, so I keep it up high. When it comes to guitar, comfort is the first thing you should look at when asking things like "how do I play this", "how should I hold this", "where should my fingers or hands be", ect. Everyone will be different and it all revolves around what is comfortable for them, so experiment with new positions for stuff.