Dont get panic.There is Always a bad phase in every one's life .May be u in a stress conditions. Personality disorder is a broad term.u consult a psychologist for ur proper diagnosis and to learn how to deal with stress in life.
Every one has stress.Its up to u how u deal with it.Accept every failure and accept that every thing is not in our hand.
Watch some motivation videos on u tube and read some good books.U need to rise ur confidence.
Health Tips
for overall health
1.sleep 8 hrs at night.
2.avoid too much social media.
3.avoid too much use of mobile pc laptop.
4.avoid mobile pc 1hr before sleep.
5.before sleep may hear good music,or read a good book or can watch a good movie.
6.workout daily or regular morning walk or join gym.
7.Share ur thoughts with ur parents or good friends.
8.Concentrate on ur work,study,passion, hobby.
9.Maintain proper diet.
10.Take proper protein supplement and some time multivitamines.