enthusiasm returning?

I think my enthusiasm for working out is returning a bit after being a bit low through september and october. I am swimming twice a week and feel ready to up that to three times a week. I have been running two or three times a week and feeling pretty good when I run. I ran 15 k this past sunday and that didn't feel too bad. I am back doing yoga about three times a week and I think that is still good for my flexibility and overall health. I am teaching a spin class once a week and feeling like I will try to cycle a bit outdoors if the weather premits it. I am booked to go to Tucson in february for a week of cycling so i would like to keep my cycling fitness up as much as possible. I am also signed up for both a half ironman and full ironman next summer.