If you really don’t have the motivation to run then try this. 15 minutes is better than nothing!
Run 1 min
Walk 1 min
Run 2 min
Walk 1 min
Run 3 min
Walk 1 min
Run 2 min
Walk 1 min
Run 1 min
Walk 1 min
Run as fast as you can for 20 seconds
Walk for 40 seconds
After about 7 minutes turn around on your route so you will back home after your 15-minute exercise routine.