The symptoms you have described suggest having depression or anxiety disorder which is treatable and occurs due to chemical changes in the brain affecting our thoughts mood behavior and judgment. It can be treated with medications and therapy. And also get thyroid function tests done.

Hello Friend, Good that you are seeking a help here. Your symptoms like fear, panic, Insecured feelings about future, memory issues, negative etc are clear sign of anxiety. Anxiety is quite normal among students due to worries about exam, career, friendships or relationship issue etc. But  if you notice it's badly affecting your day to day-to-day normal life, then it need attention and needs professional help. Be positive. It's a solvable problem and you will be alright soon. Take a counseling guidance to assess your suitation in detail to help you overcome this problems. Call me anytime or reach me online through Practo app for further detailed evaluation and recommendation that you can follow practically to overcome this problem.

Seems like depression Is there any stress going on Talk about your feelings Consult with me or any psychologist for therapy and counseling All the best Seek help

Feeling low, having crying spells, sleep and appetite disturbances, and difficulty in concentration and attention are some of the signs of Depression. Consult a Psychiatrist for a detailed assessment. It is likely with medication and counseling the symptoms will improve. If you are feeling suicidal or hopeless consult a Psychiatrist immediately.

Visit or consult a psychologist for a detailed understanding.