First: relax! Take a breath

I tried electrum too it does the same thing! I tried googling how to disable it
You don't need to disable anything. If you want to use the same Bitcoin address again: do it. There's no need to ask your wallet for permission.
EDIT: The other day I moved $300+ all my funds from one wallet AND IT COSTS ME $7+ IN FEES!!!!!! (because of so many "change" addresses over time!!)
Use Electrum (or Bitcoin Core), and enable Coin Control in Bitcoin Core or the Coins tab in Electrum. From now on, never make a transaction without manually selecting which inputs. That means you get to choose how many inputs you use.
You should read
my topic on consolidating small inputs, and learn how to minimize fees. If you want to be in control, that involves manual choices.
But why does no bitcoin app exist like this anymore?
Surely someone has made one?
Why is it so hard to program the bitcoin app to send the funds back to the original address instead of a different change address? Or was it made impossible somehow over the years??
Call it:
Single Wallet: Bitcoin Classic

Please I find it so hard to believe this great control and feature of bitcoin has just been wiped out!!
I can't breath!
