Sorcerers are indeed real, like what the old posts say. Sadly, the ones you read in most story books (not all because some authors are writing true fiction) give them a bad name, over skilled, and false info. This doesn't include those New Age books and Occult.
To me, the kind of magick they perform is more on themselves than anyone else. Like enchantment, charms, even potions if they have the know how. Those are not the only kinds of magick they do, so don't worry. (Even if it sounds more like Enchanter's, I see it as a sub level of sorcery)
Are they bad or good? Does just by being a witch mean I am bad like others say? No. Titles don't make you evil or good, it is how you use your skills for others. This doesn't mean you have to put all your focus on helping people, you can be neutral.