Invested huge in Bitcoin cash when it was over 4000$ and kept it holding. Last year hardfork happened and it's value is like nothing for me and I almost lost whatever Invested in this. I didn't do my own study and bought as per the advice from one of the cryptocurrency expert's advice and now I feel that it was my worst decision ever.

I learnt from this and never ever going to follow anyone's advice unless I do my own study and research. Bad experience gives us learning and this is is what I learnt from this bad experience.