Hii,

Computer science is very wide branch and it includes various specialization in programming, research, teaching and management. All these fields having very wide scope. You have to select such specialization which has very bright future as there are very updation in technology in this field.

I can't tell you exactly what to focuss. It should be easy for you and come naturally. If you are good at coding then you can go for developement field. If you can handle? If you can sell? If you can manage? ask these question to you. This has very bright future in management like IT operations, Marketing. Also there are some other specialization like cyber security, Cloud computing, Database administration, Web developer, Computer network architect, Graphics designingetc.

Also now Artificial intelligence and Machine language are recently very trendy in market. So, you have lot of fieldds go which suits and you have find interest in one optimal field.

All the best !!!