YSR: If your parents strictly forbade you at this age, no offense, but that's pretty sad. If they said they'd really prefer you didn't because x, y, and z, well that's a different story.
Once someone reaches age 18 and is done with high school, I don't think parents have the right to tell him or her what to do and not do anymore. I think it's good for them to give advice and insight and opinions to things, to state what they prefer and why, but ultimately they need to "let their kid go". If he/she makes a choice--bad or good or neutral--, let him or her reap their own results/consequences for it--whether good or bad. That's how it is in the "real world" or something.
It's different, though, if there's something one's parents are still providing for him or her---whether it be college tuition, room and board, transportation, an unexpected crisis, or whatever. In that case, one is still liable to them--but only in those areas related to or affecting those things. I think the rest of your life, what choices you make, etc. (that don't affect said things)--whether big or small--is up to you.
Regardless of anything, however, there needs to be mutual respect.
Ending the "general speaking" and directing it back to you, YSR, it's good that you're respecting your parents and their wishes. However (and I'm not saying they're not), they do need to respect you and yours, too. (Enter tangent again:) One-way respect (or none at all) is a problem in any relationship of any kind.
ANYWAY, on another note...
Happy birthday, Khold!
Even though you haven't been around much, I've still seen that you've been at least lurking from time to time here, so maybe you'll see this. ;P