I have a serious procrastination problem. I literally cannot stop procrastinating. Look at details?

I DO see the consequences of things, and do realise that I am f**king up my GCSEs and my life. I have tried getting rid of my computer, iPad etc, but this still doesn't work. Even if there literally is nothing else to do I will just sit and do nothing. I really need to do my work, but I have absolutely no motivation. For example, I have a speech on nuclear energy in three days and an entire country case study on North Korea due in in two days. I have not started either of them. Using a reward system also doesn't work.

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