One of the most simple things you can do make your dream of jumping higher into reality is to make a small preparation and plan ahead. Before going off to do all the exercises, it would be better to write down
How many days in a week you will be doing exercises
What exercises you will do
How much minimum time you can spend daily
At what time of the day you will be more effective
Just keep a small notebook and note all these things down. Though these steps look unnecessary but they are highly effective. They will force you towards success and you will realize the usefulness of it in the long run.
One more thing that you can do is use a simple tabular column like this
Date Day Exercise Time taken
1 mon warm up, jumping rope 30 min
2 tue warm up, stair case 40 min
3 wed rest
Keep it as simple as possible otherwise it will look like a daunting task.
So what can you use it for?
Simple, you can refer this to see what exercises you did and when you did. Accordingly you can plan further and make any changes in your routine.
Always remember that " If you fail to plan then you are planning to fail"