Everyone likes their comfort zone that's why it sounds like such a nice cosy place. But nothing new was ever learned from staying there.
The first mud run I did was Hellrunner, a 14 mile run through Delamere Forest with all natural obstacles like the Bog of Doom and Hills of Hell. Both running and obstacle courses were new to me, I'd never done anything like it before.
I was fine when I registered but the closer it got the more worried I became. It was a mixture of not knowing what to expect, people worrying about me and my over-active imagination thinking through all of the worst possible scenarios.
I was scared. At one point I even emailed Hellrunner HQ asking if I would be ok in the Bog of Doom as I'm only 5 ft 4 and I didn't want to sink in it! They basically replied with - stop asking stupid questions, it'll be fine. It wasn't the warm, reassuring response I had hoped for.
But race day came and after almost missing the last call for our wave we set off and from that moment on I had a fantastic time! There was all kinds of people taking part, the elites who legged it off right away, the outdoorsy types to do this kind of thing every other weekend, groups of friends who signed up after doing a Bootcamp class at the gym, three elderly ladies doing their very first run together and the obligatory crazy guy running in a mankini!
So what I'm trying to say is that what ever you are afraid of doing, you should probably give it a go, seriously, you wont be the only one :)
All the best discoveries are made when you step outside your comfort zone, and the best thing is that as you grow your zone grows with you. There will always be something new to try and new challenges to set yourself and knowing that I will always have the opportunity to surprise myself is a fantastic feeling :)