Selam, the key concept here is that you need to choose what you want to learn, or atleast close to what you want. The biggest mistake most of us made is we chose a field of study by the pressure of family, friends, or other people. It doesn’t have to be a field that pays so much, it doesn't have to be popular, or it does not have to seem perfect. It just needs to be something that you love learning, and working at. So figure out your passion and choose a field of study that's the closest to it. If it's difficult for you to figure out what you like or you don't know what you like yet, that's normal. There is a career choosing questionnaire that will help you find what you love doing.