The absolute best way is immersion. Full on survival, sink or swim, daily brain exhaustion to cram information in that you will use, over and over.
Short of that, finding ways to practice using the language is the key. Listening to videos is fine, but you need to simulate thinking and responding to make the language part of what your brain goes to. Find people online to talk to via Zoom or discord. I like to think of conservations I have and translate them in Google and re-run the interaction 4 or 5 times in the second language.
For numbers, find videos online that are things like lottery draws.
The absolute best way is immersion. Full on survival, sink or swim, daily brain exhaustion to cram information in that you will use, over and over.
Short of that, finding ways to practice using the language is the key. Listening to videos is fine, but you need to simulate thinking and responding to make the language part of what your brain goes to. Find people online to talk to via Zoom or discord. I like to think of conservations I have and translate them in Google and re-run the interaction 4 or 5 times in the second language.
For numbers, find videos online that are things like lottery draws.
Bon chance!