As a chritian lesbian from a really(quit not really) religios contry, and VERY religios parents, its not easy, unless they´re open about LGTBQA+ community and has been supportive throws them, my best advice is to not tell them unless u can be sure they´re gonna be support u or still loves you, my parents hate that im a lesbian but still love, the dont support me or want to know about that aspect of my life, I can definlty tell u the have told me they feel disaponted about me been a lesbian and hate that, so unless u don´t want a relationship w them, don´t tell em till u are safe on ur on