Learn Farsi: می‌خواهم طوفان خشم را کنترل کنم.

This is an example of the Metaphorical Ezafe (Ezafe-ye Tashbihi). Instead of showing possession or linking a noun to an adjective, the Ezafe here links two nouns to create a direct metaphor. You aren't saying the anger owns a storm; you are equating the anger to a storm (the storm that is anger).

Why does را (râ) come immediately after خشم instead of after طوفان?

The word را marks the entire noun phrase as the specific direct object of the verb. Here, the complete object is the phrase طوفان خشم (the storm of anger). Therefore, را must follow the whole Ezafe chain, not just the head noun طوفان.

Why is the second verb کنترل کنم (kontrol konam) instead of کنترل می‌کنم (kontrol mi-konam)?

The first verb, می‌خواهم (I want), triggers the subjunctive mood for the verb that follows it. کنترل کنم is the present subjunctive form of the compound verb کنترل کردن (to control). Even though this is an earlier concept, compound verbs can sometimes look tricky; just remember the subjunctive marker goes on the verbal part (کنم).

Is کنترل کردن the only way to say 'to control' in Farsi?

While کنترل کردن is a very common loanword and perfectly natural in everyday Farsi, you might also encounter more native equivalents like مهار کردن (mahâr kardan - to harness/reign in) in similar contexts. However, is exactly what a native speaker would typically use here.