I'm not sure that I'll get BCom In DU or not, so what are some other options if I don't get BCom ?

There are several options for you if you do not get admission in BCom in DU, you can give entrance exam for BMS in DU or you can pursue CA,CS courses etc and there is also an option of pursuing Economics Hons from DU which is also a very good option and then there is BCom Programme the cut off this course is relatively low as compared to BCom Hons

Hello Dear aspirant,
Hope you are doing well!!

CONGRATULATIONS FOR PASSING 12TH. Dear student, Go through the cut-off list of last year and apply for courses that look accessible. Cut-offs for BA Programme and BA (honours) Sanskrit in sought-after colleges drop to this level during the admission process. Your chances of getting into DUare brighter than you think. Like any other Delhi University college, its School of Open Learning also offers BCom (honours), political science (honours) and English (honours) besides BA programme and BCom. You will get a DU degree after three years. Cut-offs for Sanskrit (honours) also dip to this range in regular colleges.

Many private universities or colleges affiliated with universities outside Delhi also offer professional courses like event management, footwear design and culinary arts in collaboration with the industry. Job-oriented courses like fashion designing, hotel management, retail management and radio jockeying are other interesting options. There are many language course at Delhi University too.
Hope this answer will help you :)
Best of luck!!