It depends on you and what your future intentions are. If you want to continue staying in the market then converting your BTC to stable coins like USDT is a good option. And once you did that you may want to decide if you should keep your assets on the exchange wallet or a hardware wallet - this all depends on how safe you want to be and you have to compromise between safety and flexibility/accessibility.
As for your second question, which is better gold or silver, I'd think that the standard is the standard. that's to say Gold would be the better option than silver
Nothing beats out gold when it comes to value and we know on how precious it is compared to others.So it would be worth on taking up Gold instead rather than making confusions between Silver.
Speaking of safety or securing out yourself in talks of dumps then this do most likely talks about in shorter time frame because if you do intend on holding up for too long then
you wont really be having these kind of words..Accumulation neither is on fiat value or in satoshi value which would really be the main factors you do consider
before making some decision.
Switching to stablecoin is a good option though but im not really that confident on making my money to be stagnant on a stable coin.I would rather accumulate or
convert it to fiat itself but if you do actively trading then this would be an ideal option.