Idk what to do with my life.

(srry my English is bad)Iam 15 years old and my family is kinda religious.whenever I got my period they told me to not to touch sit in the same sport and whenever I wanted to eat something when I ask them that say bring my plate when I bring my plate they would say put the plate on down so that could give the food without touching me . I was 11 years old when I get my first periods so when all these happens I feel gross about my self there is one time I was going to suicide but then I realised I don't have to told them that I get my periods so I don't have to do those things. I used to hide it buy putting a peace of cloth. I would told them only when I feel to say it like when iam good to do the untouchable thing.so now my mom got me to doctor. Doctor told me to scan when I get the scan report and doctor told everything is alright I am not getting my period becouse of my age some girls have it so I escaped that situation by that. But doctor give me a medicine to have my period I searched it on online and it said safe to take it even though when iam have my period regularly. The doctor told me to come back on 2 day of my period now I am having my period so iam very confused what to do idk if I have to say this to my parents or not if I say this that 7 days is going to give me a trauma. Can you recommend any solution.