How much can one person take before they either break or their bad luck ends. (my life story)?

I'm 17 and this year my lifes been a living hell. it started around the beggining of october. my dad cheated on my mom and well he kind of just left and went to live with someone else. I see him still but it was pretty much a big shock. I've been taking care of my mom since then, she's pretty much on 2 anti depressants and kind of crazy i guess. Then someone stole my dads motorcycle a couple weeks later. he wrecked and died. he was part of a gang and we recieved threats and they would call our house until we decided not to file a lawsuit. I was d (male-male ) one day after being abducted from a grociery store. I didn't know the man and i don't want to search for him. I pretty much kept it a secret for a while which caused issues. i was in denial for a while and didn't think about it unless something brought up memorys but it still wasn't bad. I stole my bestfriends parents alcahol while they were gone and got really drunk new years at there house. they wern't mad they umed it was my parents divorce. i continually got more stressed and eventually started smoking marijuana. it actually helps a lot still when i get really bad. febuary hit. and basically i was isolating from my friends became a real jerk to everyone they thought i was exagerating the seperation. I got to a point where stress became immense, to the point where i had about 4 panic attacks a day for about a month. I lost a lot of friends and attempted suicide. No one knew about this though they just knew there was one day i kind of broke down and was crying. At this point i couldn't take it all the stress of holding my secret and taking care of my mom so i told my friend what happened. My stress was pretty much lifted and i've became pretty strong. The only thing that still bothers me about the is the fact i may be hiv + but i'm afraid to be checked because i know i'd be back to the same depression i just got out of a few weeks before. Yesterday i found out my dad has CML which is a type of leukemia. We're already starting to have financial issues and my moms about to get a second job. Theres a lot more smaller things too but this is all the bigger things. its just everytime i get over something something else happens and reminds me i can still be shaken no matter how thick my skin gets. I've changed from a happy joyful person who was probably the most calm person people knew to someone whose still energetic but easily angered and will tell you how it is no matter how harsh. Will my bad luck change. i don't think i could handle anything else that could shake me