liquid spill, cleaned --> flashing folder with question mark.

hi

After a liquid spill i carefully cleaned the inside of my macbook pro 13" retina with isopropyl alcohol.

Now the flashing folder with the question mark keeps on getting in my way. I tried Pram (or something like that) reset, i tried recovery mode, but there they couldn't find my ssd, I tried bootable usb... nothing so far

i didn't submerge my logic board or ssd so there are or could still be some ice tea spots.

I'm really in need of help cause I can't pay the fix and i need the laptop for college.

kind regards

baptiste