Just want to let you know that you're doing quite well! In fact, better than some native speakers I've seen. Keep up the good work :)

Yay!

F.Y.I., I had issues like this when I first started. The leaves aren't guaranteed to have Pokémon, just a higher chance. I was super frustrated when I walked to them and nothing showed! The "Pokémon Nearby" button on the bottom right will radiate a yellow circle thing around it (much like the circle around your character) when you're walking in the direction of the Pokémon shown on the button. You can also choose a Pokémon from the section that will show it and the distance from you on the button. That will also radiate yellow when you're walking towards that Pokémon you chose.

Say when you click on a Pokémon it says "3000 Stardust," the 3000 Stardust you can use on ANY Pokémon. It is the total amount of Stardust you collected and not specific to a certain Pokémon.

Oh my! Could be why she acts a bit funny when it is raining. She can't leave to get her booze on!