I think you are already there.
We know our own flaws, so they stand out to us, even though others don't notice. The important thing is to do what you think is needed, not what others think.
I had surgery on my eyes, which left me with scars just below my lower lashes. It bugs me to no end, so I am constantly applying cover-up to hide them. Finally, I went to see a reconstructive eye surgeon. This guy rebuilds tear ducts, so I think he knows his stuff. I wore no makeup and told him my concerns. He said, "What scars?" He had to get very close to see them. He said they are not really visible, and he would prefer not to do surgery and risk making new scars.
I made a post about it here, with photos, and our members basically said the same thing, "What scars?" So I know they are not the huge neon signs that I think they are, but I still invest in cover-up.
I thought about getting my brows microbladed, too. In Rapid City, SD, there is a gal who has an excellent reputation for the best work. When I lived there, everyone I asked said, "Go see Savannah Yellow Robe". Her shop is called Yellow Brows. If you can make the trip, that is who I plan to go see. I am sure others are closer; I just haven't looked into it yet.
The important thing is that I would do it for myself. Not because others think I might need it. Women come in all shapes, sizes, and looks. I have said from the beginning that I don't need celebrity-grade youth and beauty; I would be happy just being a nice old lady. One of my happiest moments was when I sent my cousin some of my more recent photos after beginning to transition. She said, "Don't take this the wrong way, but you are a prettier woman than you were a handsome man."
Trust yourself that whatever you are doing, you are doing it right, especially if it makes you happy. Others will notice small improvements that you think are huge.