when typing one letter I used to be able to go to the website that I choose. But now I cannot. I now have to type two letters. This is unacceptable. Typing g used to immediately take me to my frequently visited website: gmail. Now it goes to google. And even worse, typing d used to go to discover. but now it goes to duckduckgo. I do not want to look at these websites. I must have way to disable this problem.
Those keys are being used by the built-in search engines. Research how to remove the built in search engines in Opera and that will free up those letters. The one issue is you won't be able to do it for G, as that is hard coded into the web browser.
I now have to type two letters. This is unacceptable.
Really? I recommend you be a little bit more flexible. It makes life easier.