3. Have doubts about Allah and do NOT search for ailment to cure the heart

The next step to NOT be a good muslim is to have doubts in the heart. For Allah says in the noble Qur'an:

[2:10] فِي قُلُوبِهِم مَّرَضٌ فَزَادَهُمُ اللّهُ مَرَضاً وَلَهُم عَذَابٌ أَلِيمٌ بِمَا كَانُوا يَكْذِبُونَ

ABDLH.YUSUF ALI: In their hearts is a disease; and Allah has increased their disease: And grievous is the penalty they (incur), because they are false (to themselves).

MUHD M.W.PICKTHALL: In their hearts is a disease, and Allah increaseth their disease. A painful doom is theirs because they lie.

M.H.SHAKIR: There is a disease in their hearts, so Allah added to their disease and they shall have a painful chastisement because they

Do NOT attempt to watch this if you do NOT want to be a good muslim. It is dangerous. 

And do NOT watch this video if you do NOT want to be cured in your heart.  

So the third step to NOT be a good muslim is to let the disease in the heart stay. Do NOT search for ailment anywhere because a good muslim does that.