Inexperienced, but want to learn more...how?

Can I have some advice please. I'm from the UK, I'm 22 years old and know what I like......but the problem is well how do I say it... I'm a virgin. I do watch and I read and I observe - for the most part I'm an introvert. In theory I'm pretty sure I would be a bratty submissive. How in the hell do I meet a potential dom safely? I am an anxious person but I want to get out there. Please can someone from the UK help. :)