Ive been running competitively since i was in 6th grade so needless to say i can def answer any running questions you would have. First def go to a running store and get a good pair of running shoes. This will help prevent injury. Second i would set up a goal like maybey running in a columbus 5k (only 3.1 miles). This way you will have something to look forward to and keep yu motivated. But most of all for starters run withing your ability...you will get more out of running a long distance at an easy pace then trying to run fast. So dont worry it took you 15 min now.. you can work on lowering your time later. Also if you start to get a side cramp and you decide t stop and walk, the next time you go and run your probably going to get it again around the same distance you had it the day before.. just try and slow down concentrate on breathing a consistent rate and jog thru it. If you can get past the 3 week point you should be golden. Normally the first 2 to 3 weeks are the hardest. Good Luck !!