Hi! Everyone uses KS+, I suggest you work with it! However you can certainly make a non-plus level on the KS+ editor, and I recommend the plus editor because it's amazing. You should come to the Discord, there's a channel in it called #editinghelp which is the best part of the community imo! Some great discussions go down in there although I think it's been a little slow because it's summer and people are on vacation and such. I go by @lucindaliberty on there, you can DM me there (or on here) if you want some help and encouragement, I could find music for you as well or you could use some of my songs.
Also, the new KS editor is potentially going to come out pretty soon, the developer is making good progress on it.
Another edit: just realized that there are TWO new editors in progress