Like you Im new into the sport played my first game 2 weeks ago of to my second soon.
Like everyone has said here just go to your local site and rent out(it's what I'm doing) only thing I would say like MisterG has said is get a good pair of boots, trainers will not be good.
And the most important thing is just enjoy yourself.
Oh one more think make sure to introduce yourself as new and talk to people they will help you with anything, so I have experienced.
K