can somone pleas help me i think im doing this wrong

i go to bed and repeat i will remember my dreas over and over but i cant help but think of other things at the same time the i forget what i was saying to myself ive tried the brain wave generator all it did was give me a headace ive also tryed playing a pre recorded loop of myself saying i will remember my dreams compleatly it plays all night but dosent help is threr another way to improve your recall that im missing or am i just crewing up??? i need some major help (im getting a headace from being mad at myself)