I hv given the 12th board xams with pcm this yr nd i hv taken coaching for iit in 12th but didnt able to crack mains .so wht shoud i do now

I m also interested in civil services so should i drop a yr for iit or should i take arts and go with my other aim i.e to become an ias officer.? i m really confused between the two bcz i m intersted in both ias and iit.? plzz rplyy as soon as possible , its very urgent