Learn to read for once.

I explained if you keep your funds in 1 address you won't have the issue of paying higher fees later. You aren't changing the address at all.

As I said even if you only have 1 address to receive funds you will still pay a higher fee if you have multiple unspent transactions from that 1 address.
You can only reduce the fees if you consolidate all unspent transactions into one unspent transaction.