Hlo

If you want to know your interest you should visit a counsellor . A  study counsellor will ask you some questions and will help you to find right direction .

Other way to find your interest is to observe yourself which things make you happy . 

According to me , Running your own business will make you earn money you want . Try starting with a small business and built it in a big one . 

Last tip for you is that , there is no shortcut for earning money. work hard for it . 

Hope this will help you !