Great advice mr shin.
Also sit back and evaluate. If your growing 24 plants perhaps its not worth the possibility of missing a few and ending up with seeds in everything. If you only have a few plants, remove the pre mature pollen sacks from start to finish. Lot of work, but you could be talking 20-50% of your yield if you have a small garden. Well worth the 10 minutes a day inspecting with tweasers.
A hermie will still produce fantastic smoke as long as the pollen sacks its producing are plucked before they developed pollen. Once a sack matures every spore of pollen that fertilized a plant will start taking energy that would have been used in resin production, and switch to seed production thus lowering potency and yield.
Its a scary thing for any grower let alone those new to it.
I have also taken any hermie and separated them from the bunch. Flowered them seperated just in case I missed something. Even if you skimp on lighting etc. on the seperated plants, you will atleast end up with good bud providing the phenotype isnt shit. Also by doing this you have two seperated environments which will make you learn twice as fast.
Every mistake I've made has made me a better grower, Id highly suggest dealing with this now and learning how to do it. Some day you may come across a killer phenotype with hermie tendencies, its nice to have peace of mind when in that situation.