If you want to learn a real self-defense methodology that is practical in real-life situations, then learn Krav Maga.
It was developed by the Israeli special forces and is truly effective.
It's based on relevant, tactical maneuvers...NOT on "style" and "grace."
Oh, and you don't even have to wrestle around half naked on a mat with another man.
Krav Maga sucks donkey balls. Its basically a fast way to teach random people how to use some dirty shots to get out of tight spots. Its 100% useless against any real fighter. Bring any top Krav Maga guy against Fedor or almost any other MMA fighter. Those Krav Maga monkeys will get their head ripped off.