You will be more sure in time. You and only you know what your want. Well you already have began to make contact by looking into this web-site. If you need to know more about being gay or bisexual then look under 'Gay' in the white pages and you are sure to find a service near where you live that may help you. You may want to call a Gay Switchboard.
Most major Cities have one.
You may want to call from a telephone box if want to keep everything private. To End Homophobia, Cambridge, MA 02139. I didn't know what to do with myself. Confusion on your part will increase your parents confusion and decrease their confidence in your judgement. If you feel guilty or are very unhappy, you'll be better off waiting to tell your parents.