Hey 

Don't worry dear at certain point of time we all people get confuse and we  aren't able to come to any conclusions . It's okay if you have opted for PCM in class 12th , though you are interested in arts your PCM background doesn't restricts you from any the career options after your 12th . So at your graduation level you can opt for arts stream s like you can do BA , or even you can try and go for hotel management as well . The field has a wide area of spectrum so make a choice after 12th and then go for your graduation .