1000 Euro is definitely enough to start investing with. You can sign up for a joint account with your parent until you turn 18 and it becomes yours on many trading sites. Search for the different stock sites and find which ones have the most features that appeal to you, I trade through USAA. Do some reading and research the markets you are interested in investing in. For example Tesla a couple years ago was at $50 a share then went up to $200 in about half a year, making a lot of money. Just be careful and make sure you know what companies you are investing in. Any return is better than none.