Use any kind of masking noise-maker that won't keep you awake. I have small Eustachian tubes and read about ways to help equalize pressure in your magazine. None of the methods worked for me. S.C. There are no scuba apparatuses or equipment that will perform the function that you wish. There probably are people who are born with congenitally small or narrow Eustachian tubes, but this would definitely be the minority.
Most people have a correctable cause for their inability to equalize when diving.
You are strongly advised to see a good ear, nose and throat specialist who is diving oriented and find out if you have some problem that can be altered surgically.