Congratulations on your improved health and discovering the benefits of cycling.
I used to train/bike 5 days, year around, but I have been fortunate that my jobs have been about 3 miles of a train stop. Now my work is too close to a stop for it to be worth it. I still ride from an earlier stop when I can but it's still 3 miles. My jobs hours sometimes go late and ride/train schedules just don't sync up.
If you commute out of necessity (or force yourself to for your health), then it's just something you have to do, no questions. You will adapt.
Soon as I figured out keeping myself dry during the rainy season my year-round commute was not a problem. Don't let little things discourage you from maintaining you health just keep at it.