Connect to your Metamask account on Chrome and add at least one Kredeum compatible blockchain networks (Polygon / Matic, Fantom, Avalanche, BSC for cheap transactions or Ethereum). Here is a tutorial to add networks to Metamask.
Buy native cryptocurrency and transfer your new tokens to your Metamask account to be able to create NFT collections and NFTs. Careful native cryptocurrencies are different from Ethereum tokens. You can use bridges to buy native cryptocurrencies like Polygon bridge or direct onramp solutions
We also recommend to create your OpenSea accounts if you want to sell your Kredeum NFTs