How do I handle all this stress?!?!?!?

I just started high school and I'm not handling all the stress well! I have soooo much more homework then middle school (At least 2 hours every day) and worse on weekends. I had about 11 hours this weekend but I was busy yesterday so I ended up doing 8 hours today. (And am still working on it now- It's midnight and I'm not sure if I'll finish.) And with all this stuff I am sooo forgetful! I just missed the deadline but a day to sign up for drivers ed cles, I spaced on joining the forensics team until the day before the first official practice, I always forget to go to drama club meets after school, and I completely neglect practicing piano- my teacher is getting madder at me by the week. And every time I forget this stuff I get completely chewed out by my parents about how I'm not responsible and I try to handle all this but I can't and sometimes I just feel like crying it's all too much. I don't know how to handle it all- I got yelled at for the millionth time today for only mentioning I need a swimsuit for health until 5 days before we swim, and I'll get yelled at in the morning once I tell them I blanked on this drivers ed deadline.... If I'm even awake enough to remember after finishing all my homework. I'm only 14! Today was the day we celebrated my birthday (I'll be 15 in 7 days) but the whole party I had my textbook at the table. My parents say to suck it up because everyone my age is this busy... but they aren't! I don't get how it's only me!?! I can't handle it!