A learning curve is not the same as a master's degree. Don't shy away from learning something because it seems daunting at first. You may find that it is easier to use once you have learned what you need to know. Any of the Adobe iterations od Photoshop, as well as Lightroom, will work. Your image quality standards will determine which software product will best suit your needs.
Yes. I started out with Photoshop then moved to Lightroom. Which isn't easy and was a struggle to master, but now they are both second nature to my workflow.