I did it yesterday for the first time.
Adjusted truss rod, and set up the action the way I like. It’s way easier than expected and there is barely a reason to be scared. Of course be careful with adjusting the truss rod but as long as you listen to the advice of others and always adjust max. one quarter turn it should be fine.
This video is all I used as resource:
Apart from allen wrenches you don’t need any special tools really.
Of course I informed myself outside of the video but in the end the video had everything I needed/wanted. Including a bit more detail about the differences of different action.