In my honest opinion, you'll need to be more skilled in photography than in the use of photoshop. If you start with the best image possible, you'll often have the best end product possible. Having said that, I usually edit every photograph I shoot, albeit slightly, with small modifications to tone, exposure and contrast.
If you're looking for money, I wouldn't suggest weddings. Weddings can be extremely stressful, and if you don't achieve the results your client(s) may be looking for, you'll have a hard time collecting a paycheck. On top of that, you have to be quick, ever ready, and you won't have any time to adjust settings, change batteries or cards, etc.
There are some websites online that buy stock images. If you have a flash with off-camera capability, I'd suggest still-life photography. Shoot flowers, fruit, people...anything. Often, this would probably be preferable to make a "small amount". Further, if you're good with portraiture, you could do some short sessions with people. To get business, be humble- charge $20, $30, $40 for 15-20 images. People love having portraits done, especially to put on Facebook, so they can have a new "Prof pic". Any friends have siblings in high school? Offer to shoot senior photos.
I have yet to be paid for my photography, although I have shot senior portrait sessions with friends in high school. In fact, I have a shoot scheduled for the third of Nov. Personally, I like to remain an amateur, but if indeed you do decide to do portraits for pay, remember to be professional, amiable and humble. Don't rush through it, nail your exposures when shooting, so that editing will be easier afterwards. With a knowledge in Photoshop (I use Lightroom, love the catalog and ease of use but prefer the actual tools in Photoshop) you can soften skin, make more subtle adjustments to skin tones, and do much more. And as this shoot coming up will likely be a paid shoot, and my first paid shoot, I'm charging $40 for 15-20 images, with satisfaction guaranteed.
Either way you go, best of luck!