I was so nervous that when bitcoin price dropped to 6000$ I was scared to loose more and withdrew my coins only to regret later that it became 8000$.
Please help me with your advice /opinion.
Even though bitcoin price is crashing just keep holding. Time will come that it will recover. Patience.
But if a time come that you really need money but bitcoin price is still low and there is no other way to get money, don't hesitate to cash out. The important thing is you first resolve your problem.
Another thing I am doing is convert my bitcoin into fiat when the price is high but I do not cash it out. It will be my saving. I will only cash it out when emergency or I want to buy something.