I'm going to run a Marathon

Yes...you read that correctly I am going to run a marathon. I joined this program called Marathon Makeover and it is a 44 week program that trains you to run a marathon. You may check out their website here . I decided to do this because running a marathon in my opinion means one is in the best shape they possibly can be and is really healthy and those are things I want for myself. Right now I am struggling with the training sessions during the week because I have never been consistent with working out and to get in top marathon shape I must train 6 times a week. The first 10 weeks they have us just walking so now is the time to "get with the program". I will be checking in with you all hopefully once a week to update you on how well I followed my training program for that week my ultimate goal is by week 4 to not miss any training sessions. As far as food goes I am just watching what i eat and trying to drink 3L of water a day. I figured once I get working out consistently down then I can move onto food. If you are wondering about an update on my weight I am 169. I would love to post a by ??/??/???? I want to weigh ??? but it has never happened so I will save myself the trouble but I do need to lose quite a bit by April 1st I am going to the beach and I wanna look good.