I don't know how to use a timer.Who can help me?

Hey. First download livesplit here: https://livesplit.org/downloads/ Then find the game/category you want to run, and setup your splits I copied splits from a run I found on youtube. No need to enter split times yet Enable livesplit timing and remember to tick off the split you want to use in settings (makes sense when you open it) Thats pretty much it.

A place to keep track of your runs is therun.gg

Hope this helps :)

Happy running and good luck