Native English speakers, can you help me, please?

[Ȼᴙιƨᴛιαᴎ]

For tomorrow I have to do a newspaper article about money and happiness; I wrote the article but I don't know if it is grammatically correct. In particular I don't know if the verbal tenses are right. Can you help me, please? Here's the article:

"One of the most discussed topics concerns the relationship between money and happiness; the question in this regard is more simply but the answer’s difficult: “does money bring happiness?”.

Happiness, as the poets say, is an istant, an unrepeatable moment. Happiness is that elusive chimera everyone chase, but it’s very difficult to achieve and too short to be savored. Money is a medium of exchange which is assigned a value often excessive.

“If I win on the lottery, I’ll stop to work, I’ll move to a tropical country and I’ll always stay on the beach.”; who has not ever said it at least once? Certainly money have a certain importance in the life: with them you will buy things you need to live and more, even the not indispensable, you can have a comfortable life, you can go travelling, find new places, you can have fun. However, there are negative aspects: you can become miser and for love for money you can say lies or be cheated, you can lose the relationships with your friends and/or family, you can bribe, you can exploit or be exploited, you can steal or be ripped off, you can kidnap or be kidnapped and even you can kill or be killed.

Concluding, beyond money there are more important worth such as love, friendship and the relationships with the people you care. Money can buy a book, but not the knowledge; money can buy a bed, but not the sleep; money can buy a clock, but not the time. Certainly money is important in the life but we must not make this medium a goal. Happiness is not given by money, but by the social relationships, by friendship and by love."

Thank you to all who will answer to this question.