Hi, I'm new to running and really enjoying it. Right now I'm running 25-30km a week, and my long run is a 10k that takes me between 60-65 minutes. I will enter some races but I live in a remote area and likely won't be able to do one until the spring. I'm not very competitive about this, I'm running for health and fun, but of course I still need goals and to challenge myself. My goal is definitely to bring that 10k time down as much as I can.
I'm looking for some advice on how I should structure my training. All the plans I can find gear up for a race on a specific date. Am I best off to follow one of these plans and perhaps just repeat it again once it's run its course? Or, given that I'm a newbie and still so slow, should I just build up mileage and not worry about ay kind of speed work until I have a better foundation?
Finally, I'm currently running 4x a week. A 10k, two 7ks, and a 5k. If I got the same mileage over three days instead would that be a step backwards?