Help ready to faceplant a chocolate cake

lol looking for some motivation I have been here almost 3 weeks now and although Im doing very good so far, I feel this week im loosing my mojo.My best friend was going this with me but she has not found the time to keep going and a long with added life stress faceplanting into a chocolate cake right now just seems so tempting. I look into groups and challenges on here and I just find myself getting bummed as i cannot run and can only manage to walk around my neighborhood due to a foot problem. Now I am right now getting my living room situated as i do have "total gym" and my plan is to take my focus away from the cake and sadface feelings and take it out on the total gym.