Feel so blue.can't hold on to my goals,do not feel that ambitious anymore. wanna cry often, feel sleepy -no matter how much i slept-.don't wanna study?

Seems...: It seems you might be suffering of depression especially if these symptoms have been going on for more than 2 weeks. I am not sure of the process in your country but it is very important that you see a psychologist or therapist as soon as possible in order to start treatment. If you are experiencing suicidal ideas please contact the emergency line in your place or go to the nearest emergency room

Any triggers?: Hi. I'm so sorry. Did anything trigger this? (Death of loved one, relationship breakup, school problems, etc?) You sound like you are suffering from depression, which may have been triggered by something or just develop spontaneously. See your doctor for a medical evaluation, and if no medical cause is found, consider counseling and/or antidepressants. I wish you the best.

Need to seek help: I don't have access to emergency hotlines in Turkey, but you need to reach out to someone. Your parents, friends, whomever you feel close to help your through tough times. Remember this is the time you need rely on those closest to you.