Thnx in advance. I have 2 questions. ? Btw i am 15?

I am a hindu but really don't believe in it at all. In my heart I feel as if Islam is the correct religion as im one of the against nwo pple. The problem being my parents are against islam and i don't know how i would tell them and my family. They wouldnt disown me but i know they would feel differently. Is there any way I could become Muslim without making it obvious because I really don't want to go against god and commit shirk. Also at the moment i feel as if i am a good guy but would that be enough in islams eyes if i ditched hinduism but totally believed in god but not religion because i feel it is man made. Would I be awaiting eternal damnation?