There are quite a lot of ways to earn money these days especially as a teenager,the internet has proved to be a very useful tool towards this great step and some of the methods are very simple and straight . The first thing you could do is open a YouTube channel and build an audience ,there are a lot of young you tubers who are making a living from their content you could also go on fiver and find a suitable gig for young people most of the fiver gigs are very simple, ones you get you first job and get recommendation ,then most jobs will come easy .The other thing you could do is do small tasks ,answering surveys ,watching videos , listening to music and playing games to earn online ,there are a number of these platforms online but my favourite of them is feature .com because of it's sim