I'm not sure photoshop comes easy to anyone so please don't beat yourself up about it! I am one of many who found a course taken at a community college allowed me to go far beyond the basics.
I'm not a big fan of Colour Balance in Photoshop - certainly in comparisson with Lightroom or Camera RAW. You may find that setting black and white points in "curves" is more affective. No matter whether you shoot JPEG or RAW, Lightroom will work with your files. It's workflow is far more logical for a photographer than photoshop is - remember that Photoshop is actually a tool for graphic design and publishing rather than for photographers. It might be worth your while downloading the demo, getting Michael's tutorial and having a play. As Michael and many others have pointed out though, at present, Lightroom's sharpening and noise reduction tools are a bit rubbish right now, like many others, I go through Photoshop and use third party plugins for these functions.
Myself and I imagine, many others do offer such a service to a greater or lesser extent; I tend only to do it when I have also been comissioned to print the images - sharpening depends greatly on output size, media and method - I only know about how to do it for inkjets! I would suggest though that $35 for 50 images is very cheap and that it is not being done by hand.
HTH
Charlotte