Even if you are going to subscribe to trimming leaves, theres no need to do it while so small, let her go a bit.
She will be fine, plenty of time to regrow anything that got broke off. . People often scare nubes that our girls are fragile as fine china, they arent! The name "weed" is not slang.... better to be concerned than apathetic, so not criticizing you for asking. I remember how scared i was round number one and every tiny oops i figured id doomed myself as a grower... as you get to know her as a living creature youll soon learn to breath eassy over minor ooopses... even by second to third grow youll begin to understand how resilient she is...
Id definetly read up on defoliating, some love stripping their girls, others leave em as bushy as a french girl.... i found when learning and reading peoples methods that the truth, or at least a starting point to create your own technique, is somewhere in the middle of extremes....