Hello there,

Since you're about to enter 11th class, start practicing mathematics more as you wish to pursue your career in tech and the most popular way to do that is by getting a degree in Engineering. If you're totally sure about building your career in tech, then go for PCM, and if you have any doubts or second thoughts then you can go for PCMB (if you have interest in medical field) because that will work as a second plan. Otherwise choosing PCM is the best way to opt your career in Tech. just  make sure you're practicing Mathematics enough to clear your exams, In web dev, things are more based on your Logical approach hence try to bring that logical ability in you by now. You've enough time for this. All the best! You can do it!