I have signed myself up for the Manchester Marathon at the end of April after doing the Liverpool half and Race the Train last year. I'm reasonably fit anyway through playing a lot of football and some squash and am intrigued/anxious to know what the transition to full marathon is like? For both of these races I did some training in the form of about three 10-mile runs but didn't have a plan with regular miles like I have this time and I'll be cutting down on my alcohol consumption with this too! I did my first half in 1:38 so was thinking I could aim for 3:30 but I don't know how realistic that is. Any thoughts/advice/guidance?