How to learn Kotlin as fast as possible from scratch?

Hi guys i just know variables. how i can learn Kotlin from scratch as fast as possible ? I want to become an android developer and now i have to make an android app for school so i chose Kotlin to make that app but have no idea about it but i have a project in my mind and i wrote it down i know what i want but don’t know what i need to learn to build it and i just have 5 months to build it i can study everyday 6 hours and more for it can you guys suggest resources and advices to start learning Kotlin i found these resources and which one should i start from i am really confused (sorry if i made grammar mistakes my English is bad but i am improving it as well btw I am 15 years old) waiting for your recommendations guys i need help.

submitted by /u/WillingnessBetter130
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