No problem. Best way to learn is by doing, and in that process you find things that YOU like, and things you don't.
With the changes you made, I'd suspect that you won't get the beer that low, which will still be high on the FG.
Give it a week, if it hasn't moved, you are done. The dry hops aren't going to make the gravity change at all, so that isn't any issue.
Taste the beer when you take a gravity sample and see what you think before you proceed. With all the changes and issues, it might be good, or it might not.