I started running about 3 weeks ago and really want exercise to become a regular part of my life. I've been going every other day and I feel fitter already and absolutely amazing after every run, but have to force myself each time I go and force myself to continue whilst actually exercising. I am worried that my motivation will disappear once the novelty wears off so looking for tips to keep it up. I am already slim so loosing weight doesn't motivate me.