Is there an equivalente in russian for the idiom " It´s not all fun and games?" Всем привет! I would like to know if there´s a way in Russian of saying this expression. Заранее спасибо!))

What means "упоротый"? Здравствуйте! A friend of mine came to ask me the meaning of this word. At first, I thought it had something to do with "упорный", I checked the "Викисловарь" and it was showing a couple of positive (some that were somewhat related to "упорный"), but also negative meanings for this word. He also told me that a Russian friend of his tried to explain the word to him, but it had a negative meaning. The context is: "Ну здравствуй, мой упоротый друг". Спасибо заранее!

How to translate this sentence "моё раздвоение вычислит кто-то" ? Hello! I'm having some difficulties in translating this sentence, the literal translation seems too weird to me, but I think I have no choice. So, what do you think? I know that "раздвоение" means split (maybe is it also the operation in math?) and вычислит comes from вычислить, that means calculate, so the translated sentence would be "someone calculates my division"? It's the sentence of a song, so I'll post the verse: "Коньяк не горчит, как одни твои мнения Конечно, тебе не понравится это Без сомнения, на этот пути уже нет поворотов Моё раздвоение вычислит кто-то" All of them, but this one I'm showing you, I could easily translate. Спасибо заранее!

What is " Крещенский мороз"?

Is there any difference in saying "я читаю" and "я думаю"?