Hi im trading altcoins on exchanges for years now and i was always withdrawing like 60-70 percent of my profit
and buy bitcoin for the rest (30-40 percent) but since btc price is highly increased you think i should just keep
doing the same or i should buy USDT instead with that 30-40 percent meant for bitcoin and store it in a safe wallet
like trezor till btc price drop or till we see a new bear market then buy btc with that saved USDT

in cryptocurrency investment especially Bitcoin nobody tell anybody what to do, what I know concerning bitcoin is that once you invest the more you make more profits if bull season approaches bitcoin, so it’s good for you to invest on Bitcoin and refuse to panic knowing that the price will surely increases, for me I will prefer investing in bitcoin more with the profits I have already realised in the one I invested, despite that it's a risk, so bitcoin investment is something of risk that you may make profit or not during the investment.