Like RunnersHigh said, ask yourself why you started running. I've been running for a few years, and when I started I told myself that my goal was to use running to make me feel better about myself. Mostly, I used it in place of therapy. When my fun activity ceases to be fun, it's time to take a good look at what my goals really are.

If you're running for fun with a side of exercise and fitness, I'd say just keep running. If you feel like running long one day, go for it. Same goes for speed. Just keep track of your weekly miles so they don't get out of control.

Good luck, it sounds like you're doing great.

-Todd

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-Todd
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There's plenty of time for rest when you're dead.

Well running on the treadmill vs road each has their place in training, I wouldn't categorize one as "better" than the other.

If you are training for a road race, of course you wouldn't do all of your training inside on the treadmill, but on very hot days or even cold snowy days getting a good run inside on the treadmill might ultimately be safer.

Its also personal preference, alot of people find treadmill running boring.

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You're 17, weigh 140lbs and eating only one meal a day? I don't know of any plans that have you eating only one meal a day for an active person. After all the questions you have asked on this post I believe you should either seek out a good coach, counseling, or a language arts teacher.

One meal a day is not a healthy eating perspective no matter how many Calories it holds. Hearing it makes me concerned for what else is going on in your like causing you to eat this way. So no 1 meal a day is not healthy.

6 small meals (think grazing or picking or snacking) a day is generally considered to be the most healthy way of eating because you body can process small amounts of food in a more usable way. Also it tends to help keep people from gorging themselves.

I tend to eat whenever I am hungry, which generally works out to 4-6 times a day. I eat normal size breakfast and dinner but have "snacks" throughout the rest of the day.I tend to eat every 2 or 3 hours during the day. I consume anywhere from 1500-2500 calories a day.

I know in HS this can be much harder. I don't eat in front of my students so my eating plan tends to get messed up during the school year... but generally I eat before school, at lunch, right after school, and again at dinner. If I can't fit another snack in then one of those meals absorbs the calories, but if I can fit more snacks in I do!

Hope this helps!