I just want to encourage you to keep at it. It may be difficult at first, but your fingers and hands will adapt and eventually the stretches will be easier.

A guitar with a smaller neck will help in the short term, but also try some stretching exercises...like spreading your fingers apart using the back of the guitar neck, etc.

"Small Hands" and "Short Fingers" are really a myth when it comes to guitar playing. You can do it, using what God gave you, if you work at it for long enough.

Cheers!