When I was new to bitcoin, I lost a few bitcoins in different ways. The first one, I was gambling and was excited when I was winning. In fact I had doubled my deposit in a very short time. I thought that was lucky day and became greedy. Within a second, I busted all that I had won and all that I had deposited. In the second instance. I found a link on youtube that ws claiming to be a bot that could multiply my bitcoins. I downloaded the boat and tried to use to gamble. when I just clicked to start playing, a saw an error message displayed and the account was zero. That is when I realized I had lost everything to the bot