Controlling one's anger

Q: I really need to finish my anger issue. I get angry really easily and I'm always physical when angry (meaning I slap or shout at the person Im angry at). I have tried drinking water, doing ablution saying Aauthubillah mina shaitaan irrajeem but nothing really helped. Please help me how can I deal with this anger. Is there any dua or something?

The five pillars of deen and the faraaiz of other Islamic acts

Q: My question is that we believe that there are five Faraaiz in Islam (Kalimah, Namaaz, Roza, Zakaat and Hajj). Then how we categorize that there are different faraaiz in every Islamic aspect like Wudhu Faraaiz, Ghusal Faraaiz, Hajj Faraaiz, Namaaz Faraaiz etc. What is difference in five main faraaiz and then the faraaiz in different Islamic acts. So can we say that there are not total 5 faraaiz but a lot of faraaiz in Islam?

Fasting being given priority over nafl ibaadat

Q: I would like to fast and try and see how far I can make it. The problem is that when I tried fasting last year, the medications I take for epilepsy are much stronger without food so I end up waking up after 11 or 12 noon most of the time and then don't have much energy for tilawat, zikr, etc.

Should I give fidya and put my tilawat, zikr, duaa, etc. first or fast? For me it's a matter of nafl or fardh, which is more important, the fast or the ibaadah and tilawat?