Re: What happened to keeping all my bitcoin in same address? Now I pay insane fees?!
First: relax! Take a breath 
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.
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.Quote
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.