Yo mun,

Add your perlite Evenly dont be adding extra to "certain" parts of the soil!
3parts soiless 1part perlite

add nutes at 1/2 strength wen the second pair of leaves have come through and go full nutes when the plant grows its 5-6 leaves, people may critise this but i have found that this method keeps plants active and they don't become lazy! and stunt their own growth.

and if you want your seeds to germinate for sure is to get yourself a small heated propergator one that has a mat you can poor water on so it humid inside!

and if you dont want hermie dont do anything out the ordinary, in other words just dont stress the plant let it grow