There are many ways to delegate/stake your ADA, you can choose either Daedalus or Yoroi as your private wallet.
ADA can’t be delegated from a legacy Byron wallet. It must be delegated from a new Shelley compatible wallet.
While the Delegation itself is the process by which ADA holders delegate the stake associated with their ADA to a stake pool. It allows ADA holders that do not have the skills or desire to run a node to participate in the network and be rewarded in proportion to the amount of stake delegated.
Let us make a simple statement to you: Just delegate and have the excited experiences with us (Ticker: YORK)! You can support the Cardano Network to be more decentralized and earn the plenty of REWARDs (With ROS ~5.5% annually) in a CONVENIENCE WAY! We will not touch your ADA but we can grow yours!