Okay. First, identify what fish you want to keep, just to make sure they don't eat plants. For me, that means reading up on each species from the internet.
Generally, lifebearers and tetras (with the exception of Buenos Aires tetra) don't eat most plants.

Start small. You don't need a big tank to get a beautiful planted one. That way, you can afford to make mistakes. When you're experienced, you can join the big boys later...
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Einz is no sifu...