To the best of my knowledge, short of getting a hysterectomy (which, without medical necessity, no doctor would do anyway) you cannot permanently stop your period.
It's true that there are some forms of birth control that do lighten or stop SOME women's periods altogether, but not everyone & it's just a side affect, not what the medication is intended for.
I was on the depo shot for 6 years, no periods. I loved it, but it's hard on your bone density for that long so I came off of it. Keep in mind, with this medication you'L. need to visit your gynecologist every 3 months & pay for the injection as well so if insurance is an issue for you, that's not the route you probably want to go.
My doctor switched me to Implanon which is an implant in your upper arm that is supposed to last for 3 years & have precisely the same side affects as Depo Provera. I thought great! Now I don't have to come in for a shot every 3 months & still no period! Wrong! For the first 3 months that's how it was, but after that I got my period consistently for 5 months. After the first 8 weeks of constant bleeding I went to my dr. & begged her to take it out. She talked me into leaving it in for 3 months which was enough time for my husband to get a vasectomy & get tested. Since then, about 2 years ago, my periods have gone back to normal, but everyone is different.
There are some types of birth control pills that will give you only 4 periods a year, but again, you'L. need the dr. appointment and then to pay for the medication.
If you have been to more than 1 gynecologist for a 2nd opinion & they're saying there's nothing technically wrong, it's just uncomfortable for you, then I guess you've got a choice to make of whether you're able to come up with the money for doctor's appointments on a semi-regular basis.