OK, I just mixed my first oil mixture (I usually just be premixed oils), I did patchouli and orange, with olive oil for the carrier oil....any way I put a lot of patchouli and orange oil in I think it was a 2 oz. bottle, but for some reason it still doesn't smell that strong, why is that, how much do you usually use? And how can I make the smell stay longer on me, like for some reason when I put the oil on, the smell only stayed on for like 10 minutes, why is that, how can I make it last longer...