Being a bi to me is not a big deal...My theory in life is to do whatever makes you happy as long as you don't hurt anyone in the process. Life is so short..why not enjoy and have fun with it...but i can see the problem that you are having you are still young and living with your family...Just bare with them until you move out
If your family loves you eventually they will excpet who you are,
One was the first non-asian guy I date...you think My family was happy about that...takes time...that is my 2 cent