here is quick and easy for you since nobody like giving straight answers on here to newbies for some reason
View attachment 1659179 cut at the red line for 4 conas excluding the cotyledons count up three node sets and choppo it also dosent hurt to wait till the 4th and 5th nodes form due to better rooting
View attachment 1659186this is the 1st pic topped and what it should look like
View attachment 1659191 and if done right this is the vigurous growth youll get. this is 6 days later.
hope this helps out pm if you have any questions about this method and here is and dummy pic for ya . im not saying your a dummy i just call theses simplified pics that.
View attachment 1659192 or
View attachment 1659194