Florida Bear

I have tried smaller eyepieces, but can't seem to get them to focus, same with Barlow's.

Must be me, and just need to keep experimenting, and patience.

I actually have pondered if something was wrong with my scope.

I have a Celestron Starsence Explorer DX 130AZ F5, with 650mm focal length. I can't seem to pull in images as I thought I would. Am I expecting too much? 

Working numbers say anything more than 13mm eyepiece won't focus.

Saturn is smaller than pencil diameter, and the Pons comet is just a small smudge, not very distinct.

Again, am I asking to much for larger, clearer images?