hair growth?

so ive been trying to grow my hair out since 6th grade and now im in 10th grade and i get my hair trimmed every 3-4 months and it doesnt seem like it grows anymore i wash my hair everyday bc when i dont tge next day looks like my hair is completely wet and i tried not to wash it everyday but it is still greasy and it didn't get any better ive tried many shampoos and i onky put conditioner on my ends bot my roots i also use a hair mask 1ce every 1-2 months and nothing helps.. i also only use heat when i need to so like 1-2 times a month i also never blowdry my hair and when i shower i dont use hot water and when i get out of the shower i sometimes brush my hair and when i do i use a wet brush.. does anyone have any tips for hair growth, anything you think would help or any amazing products?? if so please leave a comment thanks you!!