Can you tell me how to increase my iq score?

Depends: The iq test is a measure of intellectual function.When preformed by a skilled observer it will generally produce results at a similar point level years apart.The individual being tested will never do better than they are capable, but can do worse, level of worry, sleep, nutrition, health may all hold someone back for one test, while they do better on another. I know of no way to inflate a score.