Low on memory
When i look up the storage in "about my mac" info i see i have much less free memory than i should have ( sth about 50 gb of used memory and 69 of free). I checked folders and i know all folders together don't take more than 25 gb. Then i thought maybe system requires so much memory, but then i remembered that it requires just 7 gb, cause the info tells me my total storage is 121 gb.
So, why do i have 50 gb of used memory?
MacBook Air