Your number is high. Very high.
There are, of course, people out there who just love sex and have lots of partners not because of any problems they have. But for the most part, people who have slept with a lot of people (think upwards of 100) did so to run away from some problem, avoid facing some insecurity, avoid analyzing themselves and figuring out why they couldn’t have a committed relationship and more. If you’re right with yourself, you’re bound to end up in at least a few long-term relationships that would naturally keep you from reaching 100 notches on your belt.