So you think English is just another language? Just as logical and illogical as any other language?
Well, maybe, to a Man from Mars! That means, to a being for whom ALL human language is alien, English may indeed be 'just another language', but to humans who are born into English or come to it by a more roundabout route, English can be a truly aggravating, frustratingly orderly, terribly exception-filled, vastly encompassing but quirkily deprived and deficient language.
You've probably heard some of the weirdnesses, like "If the plural of goose is geese, why isn't the plural of moose meese? And if the past tense of go is went, isn't the past tense of throw thrent? or show shent?" English comes to its lumpy inconsistencies by way of having been heavily influence through its formative centuries, by Latin and Greek, German and Middle French among other fine languages. Actually, the inconsistencies provide a flavor and texture that CAN make English more memorable than any of those roots, IF one is willing to learn the exceptions AND the rules.
More bothersome for modern learners is the problem of multiple meanings attaching to one word and multiple words for one meaning. Although other languages have a few of these, many English as a Second Language learners come to English with pre-conceived notions of what makes the 'right way' to express something or to order words, and English may or may NOT fit well with their expectations.
The very richness of English expression becomes an obstacle to the new learner, but a blessing and an enriching quality for the intermediate and advanced learners of English. There ARE more ways to skin a cat, and English lets you try most of them, with enough time.
Learners who want to taste the richness of English will keep on, past the orthographic inconsistencies in English and seize the different ways of representing the same sounds as a blessing, a way of helping to fix a certain meaning in memory, with its different spelling. For example, look at way and weigh, or pare and pair. The different spellings can help a real learner affix meaning, whereas these 'difficulties' simply provide ready excuses to quit, for the lazy or uncommitted who fancy themselves 'learners'.
Knowing that there is a surface competence that many can achieve AND a deep competence that relatively few accomplish can, in itself, serve as motivation for the learner to invest time and energy in learning Latin prefixes, roots and suffixes. Likewise for the Greek-derived portions of English. Learning the etymology of a word can shed much light on a literary passage or a news article, and fill the learner with that reflected light. For example, most people think of sin and have visions of immoral acts galore, but are surprised to learn that it was originally a Saxon archer's term, meaning "Missed the mark!"
So study English for the benefits, and partake of them unabashedly, for English IS the de facto universal auxiliary language today, unless and until some other language becomes more widely studied, more widely used and more widely spoken!