Apart from choice and courses, your marks in 12th are also important to consider because, without that, you will not be able to get admission in any good college or university.
If we talk about courses, B.Tech is obviously the first option, you should consider as most of the reputed institutes have placement services after completion. Your problem with PCM subjects is actually not only your problem and there are many students who are finding these subjects difficult but it just requires an extra effort to overcome your fear and your career will be set. After B.Tech, you have the option to pursue Post Graduation and you can go for it but even without pursuing Masters, you will have good job options.
In the case of BCS, it is considered as a normal graduation degree and without post-graduation, you will not be able to have good career options.
Even if you will get a job, your performance will always be compared with a B.tech professional because both of you will be having a similar domain of working that is computer science.
Another point is, PCM subjects are important in the field of computers hence you cannot think of skipping them at least at the academic level. So, it is better to give extra efforts to turn your weakness in your strength and just four years of hard work during B.Tech can make your career.
Living & Learning- simultaneous processes!