I think I mess up again

I’m new to growing I’m starting seedling for first time my medium is Mirical grow natural care worm castings and blood meal
My mentor say I’m over thinking blood meal will bun my seedlings ?????????????
 
Dam bro i only use 3
One was banger glue my mentor look out if they don’t sprout in about 3-5 days I’m going back to lab the one that’s flowering is Maryland given to me by my mentor in philly is my seedlings set up correct?
 

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