No one can guarantee to earn profit through investment. Because there are many types of risks hidden inside the investment that cannot be understood from the outside.
It is true. For safety of your life, "Don't invest more than what you can afford to lose", this sentence is not my words and I only repeat a famous advice in investment.
Bitcoin is risky but if historically if you hold your bitcoin a few years, you get good profit. It is a fact when we look back at Bitcoin history. Its future, and will you get profit by holding it a few more years, I don't know.
Bitcoin profitable days. % profitable days holding Bitcoin: 89.3%.
HODL.camp. It suggests you to hold your bitcoin 5 years and 1 month.
I have read somewhere that you can’t make money if you are saving your money. You have to make money from money, and that too from investing only.
Invest to enrich your initial capital but keep your initial capital safe is more important.
If you lose your capital by investment, it is bad. It is better if you don't invest.
If you lose your capital by saving in banks, it is bad. It is better if you don't send your fiat to banks just to get small interest and then lose all capital.