How should novices make dps plug-ins for other games? Is there a tutorial？

snc

I know some assembly language

EQAditu

In general, there is a start guide here: https://github.com/EQAditu/AdvancedCombatTracker/wiki/Plugin-Creation-Tips

And ACT's API documentation is here: https://advancedcombattracker.com/apidoc/html/N_Advanced_Combat_Tracker.htm

I feel like parsing plugins are probably the hardest, so it's hard to say a novice should attempt it.  So there's no tutorial for such.  Depending on the game, it might not even be possible.

Look at the Parsing Plugin section of the downloads...  most of them are *.cs files, and might be commented.  I've observed that each author ends up doing things pretty differently... so it's up to style.