hi, need help to sex my babys

hello guys, first sorry for my english its not the best.
so these is my first grow, i have only 3 platns to work with so i care much for each, all 3 were planted a bit more than 5 weeks ago, and i just changed their light time to 12/12. and now the first one start showing preflowers, to sex it, i looked in some photo ppl uploaded here, yet im hoping to be wrong and that my biggest baby isnt a male


also, i've been away from home for few days and a different one has really grown, he like doubled his size in maybe 4 days, wellhe grow so much he got to the light bulb and he got a little burned in his head part, i've cut 2 brunches that looked really bad, but what can i do for the head part, to leave it be?

Your first 4 pics are males

the last pic i cant really tell but if its a pic of one of those other 4 then its a male

but if wanting to keep it any way you can just pinch it off ( topping style )

first thanks for answerign.

now the second is a different plant, and doesnt show those balls or the hairs yet, but the head part is a bit messed up, is it ok to leave it like these or to cut the burned areas?

i personally would pinch it off as if i was topping

are you sure that is heat issue their ? how hot is it in your cab

what type of light are you using ?

is that plant as close to it as the others ?

i have a 150 hps just about sitting on top of my baby and no heat problems at all

but i have good air ventilation / flow , so my cab stays about 79 / 80 degrees

Can you give us a break down of your set up

lights , and how close , intake / exhaust

soil or hydro , what nutes you might be using and how much you use , plus how much you water ect

it would be a little easier to figure the problem out

i use 250 watt bulb, dual spectrum, the company name is sunmaster if it means anything and on the box of it it say its lumens is 33000, also have no idea what that even is =), not sure how hot it gets. when i found the plant, it was touching, not sure how to call it in english, the place where the bulb connects to, maybe the bulb house (in my language) and looked quite burned, it was the closest plant to the bulb.
the plants grows in regular plants soil that i bought in a plant store, nothing fancy, and i dont add any nutes just pure nice tap H2O that i let them stand for about a day so the chlorine and fluoride be (again not sure how to say in english) will vaporate, about 0.75 litter every 2-4 days depend on how dry the soil gets, i use a fan to ventilate the grow room, and its good solid temps and humidity id say maybe 25-28 celsius, we dont use fahrenheit so i dont know to translate and over 60% humidity easy. as i said, nothing fancy, but for now it makes the job done.

if you have any tips id love to hear, i will tip the dead head parts of it, hopefully it will be just fine and will grow to be a beautiful babe