Well, Yes, perhaps bitcoin is now in an extremely risky zone, and can certainly collapse, but I think still this will not happen, and it will only rise and will work for a long time.
I agree, because bitcoins value now is not good to sell. And aside from this, the market value is very low and it is not good idea to sell as early as now. But I believe that when the time goes on, and time passes by, the value will change and it will increase that every user are satisfy on the value. Addition, every investment is risky.