Usually people know well what interests them. If the question arises about your interests, then you want great life changes. The path to new interests may not turn out to be particularly fast, because it is connected with a new knowledge of oneself.
Instruction manual
one
For some time, exclude ordinary sources of information from life. You must hear yourself, and for this you need to drown out extraneous voices. Do not use social networks, mail, do not read the usual books and newspapers, do not watch TV shows. If possible, temporarily do not communicate with former acquaintances. Your mind will become free from outside interference.
2
Retire and start taking notes. Continue this exercise day after day until the logical conclusions lead you to any decision regarding your interests. It is good if the place of your solitude will be connected with nature.
3
Read a dozen books about people who find themselves in one thing. These may be biographies of scientists, athletes, and educators. The thoughts of prominent people about how they developed in their field will prompt you to new ideas.
4
Make yourself a regular visitor to exhibitions, concerts, events, meetings. Observe that you are particularly attracted to other people's activities. You are able to start from scratch and in the next 5-10 years achieve great success in any business. Therefore, do not reject desires that now seem impossible.
5
Make a list of circles, sections, schools, which teach people of your age. Visit these places and watch how people are doing. Perhaps something will immediately entice you.
6
Ponder the meaning of life. The area of interest often intersects with this issue. The only interesting thing is that it makes sense for many years. Collections of thoughts of great people will help you in your thoughts.
note
Finding interests only through reflection is impossible. Try everything you think is appropriate. Listen to your heart more than your friends' advice.
Useful advice
Do not stop keeping a diary. Old records will show how you are moving in search of your interests.