Assalmu alaikim dear sister
Allah subhanahu wa taaala created us to worship him: worship our Lord and made prophet Muhammad salla Allah alaihi wa Salam an example , we should have faith and do good. Look to what Shia did to Islam : they are digging for proplems, cursing sahaba , rejecting correct hadiths. Through centuries they changed the message of Islam and corrupted the pure clear concept of tawheed and sincerity which is the core of idea in Islam . Dear they want to spoil your Eman and make fitna, just ignor them .
Yes there was people around Ali radia Allah anhu at that time who where sincere are true follower of Islam. But through centuries ill hearted people used that issue to fight Islam.
With regards for all.