I recommend the following:
1- About an hour before sunrise, smell fresh air from outside and take deep breaths. As you take deep breaths, say “La ilaha illa Allah.”
2- First thing in the morning eat some honey or 7 raisins.
3- When you feel anger do wudhu.
4- Do sujud for 2-3 minutes whenever you are able to and with a deep breath say “subhana rabbial a’la wa behamdeh” several times.
5- Read this Dua daily:
آمنت بالله وبرسوله مخلصا له الدين
May Allah help you and bless you.