Hello my names Ash, i am 15 and new to this website. I will currently be 15 years and 9 months tomorrow which means i will be signing up tomorrow! Any tips for what i should do to get as fit as possible. I'm already running and doing circuits that has been set by the marine poster that i got from careers evening etc, push ups, sit ups, pull ups, burpes and swimming. Thankyou advice and tips.