NRI Indian student who has a few questions?

Hi, I am 18 year old NRI student who has just finished her A Levels (Cambridge board exams in Nov 2016). However, I scored 70% (which is bad, I know). I did PCB.

I was thinking about writing the CLAT exam this may. But I am not sure if that will be the correct step for me. Can I prepare for CLAT in one month? (i.e April) I will have to leave my country and reach India asap.
Apart from that I really wanted to give the TISS BAT exam as well. Can you give me tips & guidance?

I don’t think I will be able to qualify (low self esteem yada yada) because there will be so many competent students applying. So lets presume that I have given the test and not gotten a seat. (I would want to try for CLAT and TISS BAT next year, how good an option is that?)
What should my next steps be then? I’ve always wanted to do Medicine (but I dropped that idea with the 70% that I got), is it worth taking a gap year and applying next year? I could do volunteer work etc during.

I dont know what to do. Im so confused. All my dreams were kinda shattered when I got bad grades. All the application deadlines are over for all over the world (US, UK, Canada, Australia, New Zealand…etc etc)

Thanks in advance.