Deploy my own private blockchain using geth and deploy smart contracts on it

Here is my steps:

1. Install geth && create question7 folder to do that

2. Generate initial accounts

   geth account new 0xd2d6e015ac930d125ae18ad92a607b93bbae5eff

3. Creating a single node private blockchain

   initialize Geth using gensis.json

   use following command to run a node

   geth --allow-insecure-unlock --identity "sannie-node" --datadir . --keystore ~/Library/ethereum/keystore --networkid 4568 --http --http.addr '0.0.0.0' --http.corsdomain "*" --http.port 8502 --http.api 'personal,eth,net,web3,txpool,miner' --mine --miner.etherbase=0xD2D6E015aC930D125AE18aD92a607B93bbae5EfF

4. Mining Ethereum blocks && get some ether

5. Deploy a Smart Contract (demo contract Hello)

6.configuration network to metamask and add account to it