How To Add Matic to Matic Mainnet

First, go to platform like Uniswap and choose token you would like to swap.
Then, select amount for swap.
Click on Swap and finish interaction with contract.
Check your wallet to see if you have the Matic you need. You can add Matic by click Add Token in wallet. and search for Matic.
After Matic is added, check how many Matic in your wallet. You can start to transfer your Matic and ETH to Matic Mainnet.