Too much plant material dude. What mesh screen? How long are you shaking for?
Family member of mine spent time in morroco in the 60s, watched the berebers make it live. So trust me I know the science of kief to hash alchemy
Use at .least 100 micron mesh, if you want quantity and quality do 2 passes of bud
First for the infamous zero zero (hence my nickname) you must only tap the buds on the screen for maybe 30 seconds to a minute, the harder you shake or longer u do it allows more plant to get in kief. So the trick for purity is soft gentle short shake.
Do that first pass and collect the kief then do a second pass with longer shaking and harder for 2nd class or what the morocanns call pollen brick. The zero zero you will always find in form of oval balls or what southern euros call ass balsl where they smugelled from moroco in ppls butt..... But its the gooey stick honey blonde hash better then compressed pollen,
What you dont want is combination hash the comerical mass shipping hash you get for 3 dollars a gram in europe, I mean if its decent ok it does the job but even if not cut with crap, its just like scwag sometimes.
Hash in america very rare, especially good hash, and sorry no offense colorado or cali but stick to wax and rosin, leave original hash techniquest to moroccans libanese and nepal please....