Hello..I'm Egyptian.. Concerning the broken plurals in Arabic, it is not really a thing to worry about as they are also hard for a native speaker of Arabic to memorize. As you get deeper in learning Arabic, you will find it easier to derive the plural from the noun by sense. Nouns can have many plural forms at the same time. Hebrew has its irregular plural nouns. In general Hebrew and Arabic are very similar, first, because they are both Semitic languages. Second, because Hebrew has borrowed much of Arabic when the resurrection of modern Hebrew took place...Note that Sephardi Hebrew pronunciation is very very similar to Arabic.

الْعِلْمُ نُورٌ وَ الْجَهْلُ ظَلَامٌ al (ع)(i)lmu nurun wal jahlu (ظ)(DZ)lamun. (DZ) isn't actually how we pronounce (ظ) but I can't find any better transcription ,but I assume you already know how to pronounce both (ع) and (ظ). This sentence is actually a kind of metaphor in Arabic as it means literally "Knowledge is light and ignorance is darkness."