Medical advances where made with out the knowledge of evolution and besides I am asking How it effects me today not How it has effected me before today.
Then your quesiton makes no sense. It's not affecting you today, unless you are sick.
Yes, medical advances have been made before without the knowledge of evolution, but many, many more have been made with that knowledge, and wouldn't have been without it.
All evolutionary traits are not better at first. It may change 100 things that fail until 1 finally succeeds and it may just be different not better but well liked by the species for instance a new color of skin or eyes.
I didn't say better, I said "better-adapted". This is not about the species liking the new trait or not. Evolution is about evolving to be better-suited to the environment. For instance, a certain species of fish evolved legs a long time ago to adapt to marshy areas because that helped it to survive by getting away from other fish. This isn't about what we think is "good" or "bad", just what's useful.
And 100 things don't change until one finally succeeds. Something changes and then changes some more and then changes some more. Depending on the changes in the environment during that time, those changes might stop or go in reverse, too.