I did a little research and cutting a piece to the shape I need doesn't seem to be a problem, I was really unsure of that

I would like to keep my natural hair and not shave it for as long it looks good.

I always had kind of a high airline so I was thinking more about somehing like on the pic below.
Although now after seeing your first picture Lovehair, I'm hesitating, I'm afraid it will be too obvious that something drastically changed even if I cover my hairline like I usually do.