First time growing, lack of experience, that's my main concern, that I don't know what to chop and don't want to ruin them. Can you draw on my plants what should I cut, please?
I will search the forum also
The plant is still in veg right?
Find a diagram of a cannabis plant, showing branches and main stem.
Before you do that make sure you have a clean blade, not one that you will cut yourself with, you must take great care. I use a scalpel blade and a plastic plant label. I put the plastic tag behind the branch I am cutting, in front off my finger so as when I cut the stem I am supporting it and the blade its not going to cut me, it will hit the plastic tag, anything will do as long as it stops the blade cutting on through and into you.
I do this to take clones, you might not want to bother and if that is the case then you could just use scissors but still take care. If you cut above the second node on any branch the place you took the snip from will replace it with 2! You can cause a plant to "bush out" by just nipping the ends, new growth but again " topping" plants, nipping the top off the center stem isn't for every strain, you could destroy a plant by nipping the top or you could double or triple your yield depending on how you " train" the plant. Obviously there is more to increased yield than just training the plants but this definitely helps.
Looking at your plant right now the easiest thing to do would be to just get it cut back how you want it and then get some strong thin sticks and carefully place them into the soil so they come up alongside the branch, or main stem, you want to support. Use something that wont cut into the plant as it grows to attach the branch to the support. There are many examples of this.
Also look at 'SCROG" or screen of green. Its a simple method to maximize your yield without changing lights ir number of plants. The plants are flexible but they will snap if you are not patient. Bend the branches a little every day, don't rush it, nobody is going anywhere so just take your time. If you take care, as in be careful around the plants, and take your time, you and your plant/s will do fine.
Anything you cut off the plant, with a stem, can be rooted, the ideal length will vary depending on who you ask but I'd say as long as they need to be to reach the water they will need to live. Cuttings don't really need any light to grow roots but they do better in a temperature between 18C and 22C.