Do I need to repeat namaz for all the years I read Qadha without knowing if I was paak or napaak?

I became a muslim in 1998, there after , i never prayed for one year , as i was in college and i never wanted my parents to know abt it. i was learning how to perform namaz whenever i use to come from my collge and classes, at home, we had a very small House, so i cudnt read namaz there also, as every one cud see me I finished my college and started working, Years later we shifted in flat in kandivali, there we had 1BHK flat, so i use to go in the kitchen lock the kitchen and offer my salah, even when i use to work there i cudn’t perform my namaz but then , i use to come home and perform all the Qadha namaz for that day and go to sleep. secondly , i had a boyfriend , i thought i would convince him to get into islam , i have dated him several times, and we have gone out many times, but till that time, i had never knew abt paaki and naapaaki, i never had intimate sex with that guy, but majorly whenever we were together, with fondling and oral sex, but whenever i use to come home i never use to do ghusal becuz i knew i never had intimate sex with him, which is compulsory for ghusal, i use to come home and pray. Pls advice do i have to repeat my namaz for all the years which i have read Qadha ,( not knowing wether i was paak or napaak) before the namaz i use to perform my Wadhu please advice on this as well. Do i have to repeat the namaz again for those days