>>215693737
>I learned basic grammar and some words
I think that's too advanced for a beginner. I recommend learning more vocabulary and the verbs in infinitive(green) first . Then the most basic form of present, past and future (red circles). Then the blue circles, and the rest after. Don't even learn the ones crossed, almost no one uses them.

If you still want to brute force subjunctive maybe try translating these examples until you get them right
https://www.ejemplos.co/ejemplos-del-modo-subjuntivo/
I used deepL to translate them into English and it was pretty accurate imo

I'm not a Spanish teacher so take this with a grain of salt.