Password Is KEY (PIK)

I could remember the day my friend called me and told me about bitcoin, he went on about how its going to be the future legal tender and he said I should invest in it but i was like he’s started again.
I gave him thirteen thousand Naira to open a blockchain account for me in 2015, it done on me when crypto was trending and I went to check where I saved the details he gave me after he signed up for me. I logged in and my 13000 Naira was equivalent of around 1200$ in 2017, I screamed and I was happy.
I made plans to withdraw the money and the worst happened, it asked me for the master password that I do not know, I went to message him on WhatsApp with speed of light asking for the password and he said I can't remember till today.
Don't be like me follow this rules:
-Always signup by your self
-save your password or Login credentials in a safe place.
-Always backup your login details in another safe place.