Life story with cryptocurrency (part I)

Friend said: "I'm earning some extra money" I have said: "Ok, something I can do too?' Friend said: "Yes,if U have some money to buy machines to work for U..." Than it have started... Without knowledge about cryptocurrency,U,like I have can start to earn. Everybody,I believe,knows about cryptocurrency. In year 2015,still wasn't to many coins,like today 2020.12.06. So,I had some money to buy those machines,friend have suggested,same as him had. We were in "business". First month, paying good, second month,paying good... Than,it have,on monthly basis halved. Why?I have asked my friend. Friend said:"Read article on Google,someone have "robbed" some exchange for cryptocurrency,where we have account. To don't believe in it. Someone of U,readers,have same experience??? Believe so. Boom,next year prices rising, payment from digging again goes smaller on monthly basis. Electricity starting to kill my pocket. Hahaha,I have started to count my profit for one year. Can't say I'm in minus,but not in plus. Damn,I thought. Listening to my friend who had some connections before him have put me in business,for year of work I should be wealthier than I have give money for machines last year. Don't give up,I was thinking,just don't give up. So,in year of 2017,price of my beloved cryptocurrency,have reached highest price and still isn't higher,even in December 2020. That year 2017,was the end of my business with mashine digging of cryptocurrency.