Fear for no apparent reason.

My parents got divorced when i was 2, i was raised by my dad but lately i've been depending a lot on my mom financially since i recently found out that my dad was irresponsible and unwilling to work for anything. my dad got married again and his wife had 2 children which then i thought was the reason why he barely cares anymore. my mom is a perfectionist who scolds me for almost everything i do. she told me to finish school, yet she asks me for help when i'm in class. she scolds me when i don't do what she asks. i am in my last year of university and in a long term relationship with my boyfriend. but somehow i always end up fearing he would leave me/not care for me just like what my parent did. lately, i fear a lot of things (driving alone, dark places, etc.) but i dont understand why. i always feel so unhappy for no reason because i dont have any close friend cause i find it hard to trust anyone. i'm afraid i might hurt myself/others. should i consult to a psychiatrist?