Avoid ending up like a friend, who used all the money he has to invest in bitcoin and also took a loan, promising the lender that he will pay back when he gets paid in a month, after a month he never received the salary, I warned him doing this, because he has no doubt mixed investment with 'whatever it takes', is it safe to call this greed? I don't know.
Yes, but it appears that your friend did not have enough knowledge about Crypto investment and lacked proper guidance, which is why he did all of this thinking Bitcoin investment is a quick money scheme, similar to how Ponzi schemes scam people.
You don't have to use all your money to invest, even if you are not married yet or have other responsibilities, the best approach when planning to invest in Bitcoin is to buy with some percentage of the money you earning, maybe through business or a job.
If you do this weekly or monthly you won't feel any pressure, always remember that health is wealth.
It is always advisable here in the forum that " You should not invest the money you can not afford to lose" therefore, borrowed money is a money no wan can afford losing therefore using the money for Bitcoin investment is a wrong idea because the risk is too high.