Age ain't nothing but a number Tom, like ........... 16, lol
Worcestershire, I had a mate from there when I was your age, the land that must now be called for PC reasons, "the opposite of white country" - lol.
Well your being here is a good decision and a good choice too - so welcome.
Whichever part of songwriting you feel weak in (maybe it's everything as you don't say), there's an abundance of articles to help you through the blogs, community articles and the specific forums, so spend the time to search and read up so you can join in.
Are you in a band? Are you a soloist? What have you done to promote yourself up to now? - just a few questions that maybe you can answer in your "About Me" part of your profile.
Enjoy