1️⃣ step1:

you should creat a new bot in telegram. then you should copy that token and write incpect "write your robot token"

2️⃣ step2:

then you need to start your bot

3️⃣ step3:

go to @showchatid bot and find your chat id. if you have your account chat id, then you should paste that digit code in line5 in tool, incept "your chat id".