Need To Start My Ironman Training

I need to start getting back into my Ironman training. My Ironman is in July, and the Boston Marathon in April. Thus far I have been doing mostly Marathon training. And swimming a little in between. But as of this week, actually last week, my Ironman training schedule started. I need to start ramping up the swimming and biking. I want to try to go swimming two times a week. And a couple spinning sessions per week. Maybe a brick workout or two. It’s still winter here, so I have a real difficult time getting out to do any biking. All my biking will be have to be done on the stationary trainer. Still trying to figure out the scheduling of everything, of how my running biking and swimming will all fit in with my work schedule and my karate schedule. I’ve done it before, so I guess I can do it again.