Please feel free to recommend me some more stuff! I would be very happy

OK. Beware! The ultimate hippie sheet below:
10/65: Selbstverstümmelung - wasn't it you recommending it in here? In spite of two other shorts of the director this one I found really good
Cremaster - I only saw the first part, but it's the epitome of experimental art pretentiousness hipsters rave about.
The Dante Quartet - my favourite Brakhage, right to-the-point flickering colours, Window Water Baby Moving is awesome as well
Elégia - a great short by Zoltán Huszárik. I have to see Sinbad!
Emak-Bakia, Entr'acte, L' étoile de mer - obvious dada/cinema pure/call-it-whatever-you-want experimentals
La femme qui se poudre - weird stuff
Fuego en Castilla (Tactilvisión del páramo del espanto) - as experimental as eating sausages with chocolate; surprisingly really good
Krakatau - intense and dark, outstanding!
A légy - fly pov
The Life and Death of 9413, a Hollywood Extra - really cool
Light Is Calling - beautiful take on revitalizing what's already gone (mkay, I'm being pretentious right now)
Phantoms of Nabua - how could we forget our beloved Thai director "Joe", his Boonmee short is even better
Quick Billy - from contemplative experimental to faux silent movie
Le révélateur - the peak of Zanzibar films, narcotic vision of Garrel
Surface Tension - just another experimental film
Suite 212 - video art, "to reach ultimate katharsis you must stare into unset TV, or turn it backwards, or break it, or some other stuff, can't remember, anyways I'm a hippie director and Imma add some violet to these boring found footage. Wooh!" - I really liked it, though
Tejút - Fliegauf goes experimental conteplation
Witch's Cradle - my second favourite Maya Deren film, usually gets overlooked, because everybody is fapping on Meshes of the Afternoon
Начало (I'm a hipster and use Cyrillic) - probably the best Пелешян film
Блокада by Сергій Лозниця - already mentioned it somewhere
probably forgot half a dozen of 'em, but these seem to be good for a start. You've probably seen the majority anyway.