What job should i have when im older?

Well 10 points for you for answering your own question. You clearly know what you want to do, so do it. You can be a tattoo artist during the day and have your own band and write songs and play music and dance at the clubs at night. Don't limit your dreams to just one thing. You know with the internet these days...many kids are getting their music and dancing on the internet and having careers they wouldn't have had before. You could even design your own album covers too. Don't smoke weed though, that hurts your memory when you get older and you won't be able to write songs. I have seen people who smoked a lot of weed and they are old now and they can't keep a straight thought and they tell the same joke over and over. Do it all, don't limit yourself. You have to be who you were meant to be and chase your own dreams, and you are lucky that you know what you love to do and that you are skilled to do it. Don't loose focus on what you were meant to be.