[Ronin4hire]

lol.. Martial arts doesn't guaruntee invincibility. It sounds like you need to change your focus. Even though I would say Kung-fu or TaeKwondo or Karate (except Kyokushin) wouldn't work in a real fight.. they are still respectable arts because they encourage self-improvement and health.

Anyway which martial art has failed you?

In my opinion Boxing or Muay Thai are the only effective ones for streetfighting. They teach you how to throw a good punch and they emphasise full contact sparring a lot which is probably the most important thing in martial arts.

In a one-on-one situation Judo or BJJ are effective too.. but streetfights are rarely one-on-one situations.

I have a part time job as a doorman at the moment and must say that there are some good Aikido moves that involve wrist or joint locking that I've learnt that work when I need people to move or need to control someone.