First Grow ever, Random Seeds

Using a mixture of bagseed and some random mixed seeds from a somewhat reputable source(maybe), both having been in my drawer at least 7+ years, sounds like a good place to start your first grow. 8 out of 10 Seeds germinated and were put in the egg-carton thingy with (cheap) soil I crafted as soon as about 1-2cm of root was coming from the seed. Only 4 survivived my horrible treatment in the beginning enough to show their first true leaves. Because said bad treatment they elongated like crazy and the tallest bend over and died. light was too low as well and they just sat at about 45-55%rh and 18-21C the first 10 days. I definetly made sure only the strongest ones would survive...😅 Getting them Seedlings confused at an early point is not ideal as well, but eventually I will be somewhat sure that its 1 Bagseed and 2 Random Seeds surviving.