Bro I wanna do YouTube , stating a startup (which need investment but I don't have so I will first earn some money by doing small jobs) wanna be a vlogger and see the beauty of world. .....................................,

Good thoughts.
I appreciate for being creative.
Take these risks once you and your family are safe these things(YouTube,blogging, travelling) can be done at any age if your passion persists.but keeping aside your studies(main priority) for these extra curricular activities may not fetch you good results always.
Start studying ,may be engineering and simultaneously do those things.
All the best

Thanks fayaz Bhai. I appreciate it. Thanks