Violin help?

Which E flat? Which C? Which F? And how can anyone communicate over text where on the fingerboard your finger should go? I doubt that you need F flat, which is essentially the same as E, when you're a beginner. That only appears in pretty advanced music.

sounds like you are a beginner.

There are many ways to play these notes, and multiple octaves of each one are found on the violin.

but here are where they can be found in first position on each string.

on your D string:

E-flat is played with "low 1", putting your first finger a half step above the open string, basically as far down as it goes next to the end of the string.

F-flat is another name for the note E. So it is played by 1 in its "normal" position.

F is played with "low 2", putting your 2nd finger right next to "normal 1"

on your A string

C is played with "low 2"

E-flat can be played with "low 4" but also "high 3"

F-flat is regular 4

F can be reached with high 4, but you may find it awkward

On your E string:

F-flat is just open E

F is "low 1"

C can be reached by high 4, but you may find it awkward.

on your G string:

C is played by regular 3.

E-flat can be reached by high 4, but you may find it awkward.

without seeing the music you are trying to play I don't know which octave you needed to find.