The market is falling sharply, I see signs of not healing, capitalization is withdrawn, should I continue to buy in the top 10 coin or should I pin down USDT and wait for new move?

Better to still wait for now because the market is still red this is really hard for us to survive if we do always buying for yes although this is our opportunity to buy but think also the next lose again if this will be more go into the deeper.
Well if you are aiming for long term gains, then buying from time to time still a good decision, as bitcoin will rise eventually, don't do some short if you don't have the skills, it is too risky and the sway will kill your investment, keep on monitoring and decide what type of investors you are before deciding
and place your entry, no need to panic what we need is to read and understand the situations.