To be safe from Shirk read these dua three times.
اللَّهُمَّ إِنِّي أَعُوذُ بِكَ أَنْ أُشْرِكَ بِكَ وَأَنَا أَعْلَمُ' وَأَسْتَغْفِرُكَ لِمَا لَا أَعْلَمُ Allahumma Inni Aujubika An Ushrika Bika Wana A'lam Wa Astagfiruka Lima La A'lam. Allah, I seek refuge with You lest I should commit shirk with You knowingly and I seek Your forgiveness for what I do unknowingly. (Amalul Yaumi wal Lailah; Ibnus sunni H-286)