AMBITIOUS GOALS + LACK OF EFFORT = BAD GRADES AND STRESS. PLEASE HELP!!

So here’s my situation:
I am a junior right now. I am failing in a local community college calculus 1 class. The highest I’ll get is a C–if I ace the final with 100. However, I already have my four years of math–Integrated math 2 and 3 Honors(these are the new common core system), and pre-calculus and stats(these are from the summer before my junior year, and I took it at a community college). The B’s I have are in both semesters of my AP chem, pre-calculus, and one semester of AP bio(for the bio I’m aiming for an A next semester. I really want to go to UCLA or UC Berkeley, or even an Ivy league(Columbia, Stanford lol, Cal tech) if that’s still plausible. Looking at my grades now, I feel extremely devastated and sad all the time because I feel like I’ve ruined my chances. I took calculus at a community college instead of AP calculus AB at my school because I want to major in astronomical research and I’ve heard that requires a high level of math. So, I thought if I take calculus at my community college, I can finish all the way up to calculus 3 by the time I finish my senior year and go further than AP calculus AB(my school doesn’t offer AP calculus BC). I want to know, have I completely put myself out of the range of getting into my dream schools? I’m a super ambitious person with big goals, but I’m also super lazy, unfocused, and a procrastinator. I’m considered “up there” compare to my classmates but average compared to all the top students at my school. My intention of taking calculus is to learn more, but this whole grade situation is stressing me out. I’ve taken on too many things this year with an inadequate mindset, and this is the outcome of it.

GRADES (GPA is weighted)
Freshman year:
All A’s, 4.0 GPA, and I took English 1 honors, Int. math 2 honors, chemistry, advanced orchestra, Spanish 2, and integrated PE(for sports).

Sophomore year:
All A’s except both semesters of AP Chem I got B’s, 4.14 GPA, and I took AP Euro, AP Chem, Int. math 3 honors, English 2 honors, Spanish 3, advanced orchestra, and pre-first int. PE

Junior year: (we just finished our first semester)
All A’s except B in AP bio and hopefully C in Calculus, 4.67 GPA, and I am taking AP bio(I challenged bio and passed, so I got to skip the regular bio class), AP Lang, APUSH, AP Physics, AP Spanish, advanced orchestra.

Extra Curricular so far in my high school:
-Tennis (2 years, didn’t do it junior bc of school)
-Track (1 year)
-an outside community college symphony (5 semesters since freshman year)
-Violin
-Key Club, Animal Charity club, California Scholarship federation(CSF) club, Green(recycling) club, Academic decathlon, Spanish club, and a little bit of interact club)community service club)
-My junior year I am secretary of Green club and CSF and VP of animal charity
-I’m hoping to get into a biomedical internship the summer before my senior year
-I try my best to do as much community service as possible through clubs, and during my homeroom I would help recycle or spend time with the Special ed kids.

I want to either go into astronomy, biology, or become a doctor or neurosurgeon(but i’m not so sure about these last 2 options hehe)
I want to know with how everything is going for me, what are my chances? What should I do more of? Advice on what would make me “stand out”?

If it really is lack of effort, then you already know what you have to change in your post title equation to increase your grades and reduce your stress. Don’t worry about a specific or elite “dream” school right now. I’d even go so far as suggesting dropping the “dream school” concept. There are so many more great schools than the few you mentioned, many many great enough to help you reach your goals. You can’t be lazy and procrastinate if you want to excel. Your effort is the only part of your equation that you can control. Do your best, you’ll end up with good options.

There’s a disconnect between your goals and your efforts. It could be immaturity. But all in all its quite frequent - what matters isn’t what your goals are or how smart you are, but what you DO with that.
Basically if you get an F in calculus at a community college I wouldn’t really focus on top 40 Universities/LACs. And since getting a C depends on your getting a 100%, which logic should tell you is highly unlikely - so you’ll likely end up with a D. Meaning you’ll be retaking calculus 1 next semester to make up for that grade. And you better get an A. If your guidance counselor is nice (and if you don’t forget to out it on the brag sheet) they may explain it with 'getting used to a college learning environment " - it’ll mitigate but it won’t erase.
Lesson number 1: in college, you need to go to office hours, do the work on your own, be responsible.
Lesson number 2: know when the drop or withdraw period is and if it looks like you’re getting a C or lower after midterms, drop or withdraw.
Finally, if you’re interested in a medical career, you should go to a school where you’re top 25% and be part of the Honors college. Med schools don’t care where you went to college, only your GPA, medically related activities, and MCAT. as someone on this website says don’t have a dream school - have a dream life.
Read how to be a high school superstar and where you go is not who you’ll be.

MODERATOR’S NOTE:
Closing thread. I have banned the OP for an inappropriate user name; she can ask the question anew under a name that is not offensive.