HI, Now that you will do your 12th in commerce stream then you can pursue MBA further which many concerned people must have suggested you. Also prepare for many MBA entrances like CAT, MAT, XAT, CMAT etc. to get into top management institutes or else if you do it from anywhere it shall keep no importance. Also you can plan to work for few years like 3-4 years and then get into MBA or Ex MBA with a good experience in hand which also gives you better placements and success ahead.
You can also go in the field of finance. Incase you want to know more about it let me know.
Good Luck.