I assume almost every trader at least once experienced both margin calls and over leveraging. There's a joke that newcomers start with the highest leverage and then climbs down to the lowest one, while the point is to increase leverage. Apparently, they lower down leverage because all the time positions are closed in minus.
In my opinion, it's a kind of a standard situation. You shouldn't treat them so seriously and take them so close to your heart. It's just a stage which everybody runs through.