If you have given three or more talaqs to your wife, she was divorced with three ones and became haram for you with mughallazah bayinah talaq, now it will be haram for you to marry her without a valid halalah:
فَإِنْ طَلَّقَهَا فَلا تَحِلُّ لَهُ مِنْ بَعْدُ حَتَّى تَنْكِحَ زَوْجًا غَيْرَهُ (2:230)
Talaq takes place in the state of anger as well; even talaq is given only in such conditions, one does not give talaq but in such conditions.
Allah (Subhana Wa Ta’ala) knows Best
Darul Uloom Deoband