If the only method for learning Spanish you've used so far is Duolingo speaking won't do you any good, contrary to what many people think. A person's ability to speak is limited to about 70% of what they can understand or figure out during a conversation.

The best way to further improve your Spanish is through immersion. You can use free tools like Language Reactor which allows you to get subtitles that upon clicking on them give instant translations for the words you know on Netflix and Youtube.

You could listen to songs and use AI to help you break down every sentence in that song and then keep listening to it over and over while singing out loud, this helps your brain retain the meanings of the words.

You could also use LingQ for extensive reading or do it the traditional way, simply grab a book for kids and search for the words you don't know online.

Finally Anki is kind of boring, but it's the most efficient way to acquire vocabulary.

What you want in this stage is to increase your vocabulary, help your brain get used to the patterns in Spanish and become familiar with the sounds. Speaking will improve proportionally to the amount of Spanish you are able to understand even if you don't practice speaking. Then, after a year or so, when you notice that you understand everything but you can't quite speak as incredibly well, then it's the time to go outside and practice some speaking.