Self-study

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Does anyone know good resources to self-study chinese? Tbh, I learnt chinese two years ago but I stopped js to focus on a serious exam. I've studied up to HSK 5. Now, I forgot every single thing I've learnt. (At that time, I wasn't serious about studying.) I don't want my parents to afford a class for me bcuz im afraid that they will scold me instead.

Pls help me guyss🙏🙏