Peace

this is my first grow.i m growing 2xwhite rinho and a cheemdog in my clloset.i top 2 of my plants at forth (real)note and my first try to fimming do it well and i get 4 main tops growing on this note. The question is if i have to topthem again a few notes up.is this bad or somethink for my plants?
and sorry for my english

Absolutely not. You can top a plant as much as you want with very little problems

u said men.i will scrog so i think i will quntinue topping till cover th 70 % of the screen before i swich to 12/12.my room is 3x2x7 feet and i m using 35litres pot.