MAKE GOALS MEASURABLE
When you can track your progress against a benchmark, you know if you are getting closer to achieving your goals. This can help to keep you motivated.
For instance, running a personal best time over a set distance - This way, not only will you see your progress, you'll know when you have achieved it! Similarly, say 'I
want to be able to do 20 push-ups on my toes', so you can measure your progress and know when you achieve it.