I’m a Shia and I generally respect every other Muslim but sometimes I feel extreme anger at them for their beliefs (especially for Salafis) and I lose my temper and then they accuse me of "taqqiyah". I know this is wrong as they are Muslims too and have rights over me like any Muslim but sometimes I cannot control my anger. What can I do to avoid this?

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Put yourself in the shoes of the Holy Prophet or Imams who had to deal with much worse

Be grateful for the blessing of Wilayah and pray for them.

Look at each of them as potentials who maybe guided

The Quran says don’t worry about others but protect yourself

Holy Quran 5:105
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يَا أَيُّهَا الَّذِينَ آمَنُوا عَلَيْكُمْ أَنفُسَكُمْ ۖ لَا يَضُرُّكُم مَّن ضَلَّ إِذَا اهْتَدَيْتُمْ ۚ إِلَى اللَّهِ مَرْجِعُكُمْ جَمِيعًا فَيُنَبِّئُكُم بِمَا كُنتُمْ تَعْمَلُونَ

O you who have faith! Take care of your own souls. He who strays cannot hurt you if you are guided. To Allah will be the return of you all, whereat He will inform you concerning what you used to do.