I wanna install linux on my chromebook, I am a beginner on this matter and have cero idea of what to do, looking for some hints and tutorials.
have you tried reading the docs here and on my site?
This site has a very detailed process on how to get the device ready for installing Linux. Check that your device is supported, disable firmware write-protect (which may involve disassembling your computer), enable developer mode, and run the firmware utility script. If you’ve done everything correctly you’ll have essentially a normal low-end laptop (albeit one with a limited and usually not upgradable amount of storage and RAM). You’ll need to then find a Linux distro (I recommend WattOS for older devices and either Debian 13 with XFCE or Mint with XFCE for newer ones) and flash it to a USB stick with Etcher or Rufus, then boot the laptop from that stick and run through the install process.