Hey,
I am new to this. If anyone know about this then please let me know.
Just to make it clear, you are not creating nodes in the blockchain.
Full nodes or just nodes are only validating transactions and listening to the blockchain. You can also make a transaction, but you are not making anything else in the blockchain.
As mentioned above, you need a lot of free space and some bandwidth, as you will need to verify every transaction that ever happened in the blockchain and validate new ones.