How to stay self motivated:

Motivation is a human factor in management. Motivation represents the willingness of an individual to put his efforts in a particular direction so as to achieve his goals. Motivation is what makes people perform or do the things. ... Motivation is important to both organization and individual.

We can stay motivated in 2 types of situation:

1) Love / willingness

2) Fear

1) Love / willingness

When we love the work we do, then automatically we can stay motivated, generally we procrastinate our work because we does not like the work which we need to do, but if we love the work and put all our interest in that particular work then we will stay motivated.

example:

a) Some people love to go to gym, so that they will be motivated towards that always

b) We love to watch TV, movies, we never procrastinate watching it

2) Fear:

When our exams are to be conducted the next day and we have not read anything, in this situation the exams are our fear and we do not think anything else except studies, our motivation and our productivity will be at the peak, here exams are our fear

When we need to submit the presentation tomorrow and we have been procrastinating since 2 weeks and at that time our deadline will become our fear and we will stay motivated towards our work

so we need to create some back pressure for our work to get done,

for example:- 

a) fix a dead line and make that as your back pressure.

b) tell someone (your well wisher) about your goal so that they can be your back pressure.

c) Measure the activities, weather you have done the work or not, so that if we have not done that work and we get to know that we will feel guilty about it and will not repeat it.