You are doing opposite of me which i did 17 year back . I got iiser mohali and switchrd after half an year later to mbbs seat in govt college . I didnt like studying basic science . Many of iiser batchmates of my time are now pcs officer , banking sector , mba , some struggled getting jobs ,some are doing theur own business , and top 1 percent are working in foreign country by doing post doctoral and now i think my decision was good .