Hmmm...I personally don't think there is "too many", if the person truly does need the help of the hospital. Being suicidal and homicidal are usually the reasons somebody would go.
Myself, I have been to the hospital a total of 9 times, in the past 3 and a half years. I needed the hospital every one of those times, because there was suicidal thinking & intent. And they did help me out. That being said, going back is something I'm not planning on doing. But if nothing else was helping, I would get myself admitted.
I hope you don't focus so much on the amount of times spent there, but instead on achieving balance and mental stability in your life.

If that includes another hospital admission, so be it.