Try "cocoflor" - and I hope it's called the same name whereever you are
This is a dried and pressed block of (sterilized?) coconut fibers which grows immense when put in a bucket of water - makes some kilos of "soil-like" material. Great for growing tropical baby plants. Keep it moist, but not wet.
If you use real soil - you chance is high you get a fungus in there.
To sterilize soil, put it into the microwave fore a short time.
If you manage to get small baby plants, keep them covered at the beginning. That makes a special tropical microclimate and hopefully prevents them from being used by a special kind of fly that lays an egg into the soil, so that the larvae can dine on the root, that bastard }:-(
Happened to my babies once...
Good luck, I hope one of the suggestions is useful.
Joey