I need some advice, I had some crypto a few years ago and then sold it and made some good profits and I am now planning to buy some crypto once again and I admit that I am outdated on the crypto world right now. Can someone give a brief explanation of what DeFi is and what are your top 5 coins/tokens and where do you usually trade it. Thanks!

Today is the right time to buy and not that time , Look at the market as the prices is keep on falling now, so at any moment we will be seeing the lowest it can drop from the correction and then will start to Buy for the chance of profiting when the market skyrocket again in the soonest time because Bitcoin was not ending this year at the 58k $ , because the 60,000$ will be the main target for this first quarter of the year.
I think that many were waiting for this moment, when the next correction occurs or, as a result of the influence of the information space on the cryptocurrency market, prices will begin to decline. And at the moment, according to coinmarketcap, there is almost a 17% fall and this is the best time to use it for profitable investments. In all likelihood, it was the US Treasury Department that influenced the current recession, but this is only a temporary phenomenon.