How much calories exactly?!!

Hi all!

I'm really confused. My calorie intake has to be 1900 calories to gain about 3kg, from 43-46kg, in about 3-4 months. When and if I reach that goal, do I have to keep eating 1900 calories forever to maintain?? Is there any point where I can just stop counting calories and can keep that weight?

Thanks !

submitted by /u/jlqy
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