My method ?
Take any substraint or root cube, soak it with distilled or ph`d water or even tap water if yours is near enough to 6.5 or 7
Let what ever it is dry out some then put the seed in it poke it down a tiny bit so the tip of your finger is in there, then use 50ml of clean water then put the seed somewhere that`s between 18c and 26c but not over 28c then just water as needed and get some light on it as soon as it pop`s
It`s not hard I mean you could just chuck then outside in feb and by march my guess is most of them would pop when you lose seeds its normally not the seeds fault its normally that something you have not seen happen has happened or something outside of your control
I lost 8 seeds a few months back all of a sudden they stalled and would not start growing again, but there was nothing wrong that I could see, then I found out the power had gone out and when it kicked back in my heat mat fired up way before my cooling system
They only hit 30c but the sudden heat rise was enough to kill them all
I was bummed because it was a collection of all my freebie seeds all kind`s of crap that I would have never paid money for but every strain there was on my "I have to smoke that one day" list and they all went in the bin