What do you advise if i was diagnosed with schizophrenia and now i feel bored because of it?

Try new activities: There is no magic cure for boredom, but it is a good start that you are asking about it. Try new things, talk to people, call your family and friends, take a class, volunteer. You will find something you like to do after you try it. That is the only way to be less bored, no matter whether you suffer from schizophrenia or not.