hinduism isn't really just one thing
Tell me about some of them.
for instance vishnu is kind of the opposite of shiva
Tell me about Vishnu
vishnu is the blue one, he's the preserver while shiva is the destroyer 
Sounds like a lot of different religions.
non-theism such as Kashmiri Shaivism. It considers both the Vedas and the Agama texts as important sources of theology. The origin of Shaivism may be traced to the conception of Rudra in the Rig Veda.
Shaivism has ancient roots, traceable in the Vedic literature of 2nd millennium BCE, but this is in the form of the Vedic deity Rudra. The ancient text "Shvetashvatara Upanishad" dated to late 1st millennium BCE mentions terms such as Rudra, Shiva and Maheshwaram, but its interpretation as a theistic or monistic text
Nilesh
Nilesh (sometimes also spelled as Neelesh) is an Indian name based on one of two deities, Vishnu or Shiva, in Hinduism, depending on which of its two Hindi pronunciations are used. 'Nilesh' means 'the Blue God', and is one of the alternate names for Shiva, "The Preserver." Later, the name was also used to refer to Shiva, "The Destroyer of Evil", "The King." The name is a combination ("sandhi") of two