Hello Yuan, 

This is Simran from Careers360, I hope to solve your query.

Firstly You need to mention which category do you belong to, 

Second I think depending on last year cutoffs you will be able to take admission in the same as it might increase by just a few points, It was 81 last year.

I would suggest you read the trend analysis given in this link to see where you stand and if you should consider a few other options or not.

https://www.sarvgyan.com/articles/symbiosis-entrance-test-set-cut-off

I hope this helps

All the best