A stock market crash (a.k.a. correction) is in the offing either within the next few months or two years. This is the traditional pattern. Those who are experienced know what to do. The inexperienced, unfortunately, will compound their losses when that happens. Those who need some of their gains normally will take it now. Those who have a longer horizon will just continue to invest. If the market corrects in a substantial way strategic selling and reinvesting will realize some capital loss tax opportunities. Also that is when money on the sidelines swoops in to scoop up cheap bargains!
I still don’t understand gold and silver but they seem to be more liable to hyping and manipulation. Therefore, much care has to be exercised when investing in those metals. A long term perspective may be in order here. If you are collecting as a habit and plan to move it on to the next generation, keep on enjoying your hobby!