Should I be Asexual?

Asexuality is actually an orientation, not a lifestyle choice. People don't get to choose who they are and aren't attracted to.

However, you do get to choose how to live your life. It's up to you whether you have romantic and/or sexual relationships with others, whether you get married, etc.

If you meet someone someday and the two of you want to date, then go for it! If you don't want to date anyone, then that's fine too! As long as you do what's best for you personally. :)