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My biggest tip would be to consider the water content of your ingredients. Having a soggy pizza due to the amount of water let loose by a heap of mushrooms cooking is less than ideal.
Generally I'm the one cooking the pizzas so end up with a whole pile of leftover ingredients, as my pizza will be the last one cooked. First few times I went a bit over the top with how much I put on just to use them up. Wet pizza ensued. Not something I see mentioned a whole lot either!
My biggest tip would be don't expect perfect and treat it like a journey.
I've made many shit pizzas and still do.