I Made My Own Course Down the Passive Rivers
Les fleuves m'ont laissée descendre où je voulais (original)
Eighteen-year-old Flora joins a teenage boy for a nonexistent party, encountering hallucinations and rediscovering lost desires.
Starring Solène Rigot, Théo Cholbi, Miglen Mirtchev
It's a drama and fantasy movie, and has a rating of 6.8 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Sweden.