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and then sold it and made some good profits and I am now planning to buy some crypto once again and I admit that I am outdated on the crypto world right now.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! 
I will reviled one secret to you.Buying had no time limit. You can buy at anyprice, if bitcoin it matches hundred percentage. And if you look into a some Erc token, it had a time. Because most of coin less than 1$ and you can buy huge from it.Such token profit will be minimum and the risk also minimum.