I feel like something is wrong with me, the past few years ive been feeling constant episodes of depression..?

i dont know if its normal sadness or if its something serious like depression, but me and my father dont speak much, we'v always had a distant relationship, growing up i was troublesome...i stole snacks from this store, i got phone calls home from school because i cut cl and recently i was enrolled in a science program but then i had to leave because i couldnt keep up my gpa and now switched my major to something else in the science field. I think my mom holds a grudge, recently I was in a car accident where my brother ( the penger ) was mad at me about something and hit me, i flinched when he did it and my car swerved and i got into a horrible accident and the car is totaled. she now claims its my fault because even if he hit me, im the driver and should have controlled the car, and she says because of my childhoold plus this accident, im "Evil" and is furious with me, constantly verbally abusing me. This has added to my already on and off "Sadness" ive been feeling...am i ok?