It really can make a difference, I didn't think so until I compared it! I'm still learning my camera, so that definitely needs work too, lol. My cousin told me to get Lightroom, I've never seen or used it though.
Lol trust me, I had to watch a LOT of youtube videos to figure out GIMP, luckily photoshop is pretty similar and easier so I was able to transfer my GIMP knowledge over!![]()