atar calculator

hey guys, idk if this question even makes sense/valid to ask but i think im just paranoid. basically ik that if you do more than 10 units for HSC only your top 10 units (including at least 2 units of english (at least i think its at least, e.g. if you did 4u eng and did well in every unit all 4...

Is it too early to start using an atar calculator?? If not pls give me some reliable websites pls and ty

thank you @carrotsss for your atar calculator bc i just input my really terrible predicted marks from my trials and it somehow gave me a really great atar so thank you sm because i’m hanging by a thread atm. im hoping i dont regret asking this but how accurate on a scale of 1-10 would you say...