Can't remember exactly, maybe couple of weeks. I only remember, that it seemed super hard even dual 2-back. Then 3-back seemed very hard.
But consistence and patience make wonders. In like 3 months and a week I managed to climb 8. Just keep pushing and you'll get over it in no time.
вторник, 7 июня 2022 г. в 22:51:19 UTC+5, Leonardo: