Time to resume training

Well, considering it has been around 20 months since the Coast to Coast, and I have done exactly no exercise since then, I think the time is nigh to get restarted. I have been trying to work out when exactly I can get any training in, and I have figured out this. Days I work - days 1-3 I plan to work with one of the horses, so anything exercisey is out (since I work a 12 hour day, have a half hour commute each way - get to horses at 6.30pm, ride or whatever until 8.00pm, home by 8.20pm, bed by 8.30-9.00pm). On day four I will try to get out for a run after tea, from say 7.30-8.30pm. On days off I will do house work 7.00-8.00am. Help hose out etc til 9.00am, have breakie, then run, cycle or kayak from 10.00-12.00 noon (include drive time to where ever I wanna train that day). 12.00noon is lunch. 12.30 head to horses and hopefully ride all 3. Home by 5.00pm. Make dinner. Then run or cycle or kayak from 6.00-8.00 (include drive time) and then bed. I need to do most running and mountain biking in dog friendly places so I can run around the farm most days, and I think it should be ok to bike on one of the unsealed roads up the way - depends on what affect this may have on Stellas poor wee feet. I really really hope I can get started on this. Starting is so hard, especially when I now weigh 80kgs and I am totally paranoid of what other people think of me. Fingers crossed. And thank heavens for daylight savings so I do actually have a bit more time in my day!