In the year 2010,my best friend introduce me to cryptocurrency and he advice me to invest in bitcoin. I felt bitcoin was another ponzi scheme created by scammers to scam innocent people. Today my friend is a multi Millionaire. If only I had listened to his advice,I would have become a millionaire by now.
The story you mentioned is sad but at that time no one believed in Bitcoin and no one thought that Bitcoin could reach such heights. Even you didn't believe that's why you didn't invest in Bitcoin at that time.
Do you want to look back on the past or focus on the present? You should focus on the present and invest regularly. Stop your regrets and invest in Bitcoin as regularly as you can. Maybe you are regretting that you missed the best time by not investing in bitcoin as your friend said, your friend is a millionaire today, try like your friend, keep depositing bitcoins regularly, in the future you can also become a millionaire like your friend if possible.