Salam sister,
You might want to think of creative ways to keep it a secret, like, wearing a lot of loose clothings to hide your aurah (someone suggested this, a revert)...
Pray when nobody would notice... In times of secrecy, urgency, or emergency, praying could be simple and brief... Allah doesn't burden the ummah with any hardship under such situations...
InsyaAllah, you are creative enough to beat this...
More to this, you may want to start preaching in a subtle way, on how those artists are wearing dress that are not really a dress, showing their meat and stuff, and the fact that some lifestyle could be dangerous to the majority of the people, or the value of money and how we spend them to contribute to the society...
Have some initiatives to do good deeds and solidify our faith when confronting evil doers or messed up cultures...
Your parents will start thinking that their daughter is changing for the better, before they even know that Islam has helped you realize this strength of yours...
Islam teaches us to be brave, but smart, and humble...
Use these three traits to change your inner strength, and insyaAllah your parents will see the truth, without knowing that Allah Subhanahuwataala is your cause...
AlhamdulIllah
Allahuakbar