missed my cambridge offer, should i reapply?

i missed my offer by 7 marks. the grade boundaries especially for maths this year were extremely harsh, any other year i would've gotten straight A*s. i did biology (A*) maths (A) chemistry (A) and epq (A*). i am so adamant to get onto this course, i found it in year 8 and it has the perfect balance of topics for my quite specific passions. no other uni course is quite as satisfactory, it just happened that the only one i liked was very competitive. the rigorous teaching style at cambridge also compelled me, i want to have to argue my ideas to someone much smarter than me in a supervision, i want harsh criticism and being broken down to build myself up, i want crazy contact hours and full days in the lab, im not interested in a slower paced degree, i really love to be stretched to the limit. i applied and got an offer for A*A*A. i was predicted straight A*, i was getting them all throughout year 13. i was confident i was going to get it. my confidence plummeted this morning when i got my grades and an declined offer. i have been corresponding back and forth with the admissions team at the college but i still dont know what to do. do i take a year to work, save money, retake maths and chemistry (because i am not happy with A's regardless of if i got in or not), reapply (meaning new personal statement, new entrance exam, new interview, more waiting) and try again? and at least if it doesnt work out again i will be in a better financial position to go to either edinburgh or sheffield next year. or do i just take my insurance (edinburgh). i live in the very south so it's too far away for my parents to visit and it will be hard to move in and out, plus the bachelor's is 4 years, and i don't like the course that much. and it's not what i've been envisioning and preparing myself for for the last 8 months. has anyone else reapplied and been successful? does retaking 2 subjects look bad on my record or do they like the determination? do i have any chance? i got good nsaa scores and my interviews were competitive and i believe i can do it better this time, but i just want to know if it's worth it. i dont know what happened with my grades, i've never done this badly in any set of tests. im in despair and as a person who loves having a plan, i am lost. any help or advice would be much appreciated.

i missed my offer by 7 marks. the grade boundaries especially for maths this year were extremely harsh, any other year i would've gotten straight A*s. i did biology (A*) maths (A) chemistry (A) and epq (A*). i am so adamant to get onto this course, i found it in year 8 and it has the perfect balance of topics for my quite specific passions. no other uni course is quite as satisfactory, it just happened that the only one i liked was very competitive. the rigorous teaching style at cambridge also compelled me, i want to have to argue my ideas to someone much smarter than me in a supervision, i want harsh criticism and being broken down to build myself up, i want crazy contact hours and full days in the lab, im not interested in a slower paced degree, i really love to be stretched to the limit. i applied and got an offer for A*A*A. i was predicted straight A*, i was getting them all throughout year 13. i was confident i was going to get it. my confidence plummeted this morning when i got my grades and an declined offer. i have been corresponding back and forth with the admissions team at the college but i still dont know what to do. do i take a year to work, save money, retake maths and chemistry (because i am not happy with A's regardless of if i got in or not), reapply (meaning new personal statement, new entrance exam, new interview, more waiting) and try again? and at least if it doesnt work out again i will be in a better financial position to go to either edinburgh or sheffield next year. or do i just take my insurance (edinburgh). i live in the very south so it's too far away for my parents to visit and it will be hard to move in and out, plus the bachelor's is 4 years, and i don't like the course that much. and it's not what i've been envisioning and preparing myself for for the last 8 months. has anyone else reapplied and been successful? does retaking 2 subjects look bad on my record or do they like the determination? do i have any chance? i got good nsaa scores and my interviews were competitive and i believe i can do it better this time, but i just want to know if it's worth it. i dont know what happened with my grades, i've never done this badly in any set of tests. im in despair and as a person who loves having a plan, i am lost. any help or advice would be much appreciated.