In science field, there is MUCH MORE than just the rotten engineering and medical...There are many many more interesting things to do in this field. If you have vigour to do something new, science is the best. In commerce, being a CA is being awesome... In arts, take the highest degree and start teaching...But rather than arts, commerce and science is good.
I am sure that u may not be having interest in languages or SST specifically. If u have, take arts. If not, go into science or commerce.
I prefer science, there are many opportunities for career there in future NOT ONLY engineering and medical. For being cautious about future, science maybe a good field to go in.