STICK WITH IT!!! You need about a solid 6 weeks every/every other day to start enjoying it.
I generally say running sucks, but that's because I always start and then quit, so I am always starting (under 6 weeks).
Long ago I did stick with it and was running 18 1/2 minutes for 3 miles, that crossing 3 busy intersections going out and then again coming back.
It actually was enjoyable after you get used to it and your running muscles get stronger. Cycling and running use different muscles,
running more gluts/cycling more quads, so you have to get used to it.
I would even suggest the tread mill for the first week or so, but if you can run 7 miles/hr for 60 mins on the treadmill,
you still won't be able to do that on the real road.
If you have an 18 min 3 mile time you are in the top tier of a amateur runners.
I think the op should never consider running every day, and not even think about pace until you finish the c25K