oh i see .
You have alot of time .
I will recommend to go for pol.sc or IR because ;
You have a lot of time to master these subjects
These subjects will help you in overall preparation .
I wont reccommend physics in your scenario because you can prepare pol sc or IR in a best possible way .
Hope ,it clears your mind .
Good luck

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Power is dangerous ,for it attracts the worst and corrupts the best !