Baking is the worst place to start for a beginner, because it reauires more precision in ingredient quantity and technique. There's little room for error.

Whereas with cooking a simple dish like pasta or rice, you have more leeway with quantities and cooking times and preparation. And wayy more room for error. You can easily experiment with more/less of ingredients because it won't affect the overall dish and flavour much.

Whereas with baking, dough for example is hell. You need an almost astronomical precision unless you want to glue your entire kitchen, or make it too runny, or too floury. Baking also becomes more difficult wihout measurement devices, whereas with cooking trusting something loose like a cup or just eyeballing isn't catastrophic.

I know it's not the answer you want but really that'd mean whatever you feel is right like a pinch of salt just means add the amount of salt that makes it taste good to you which would be much better written as salt to taste but that's what they mean generally same applies with anything that's a small undefined vague amount of an item that's just there for flavour really I know that's not super helpful if you're not good at cooking and don't know what is the right amount for you though it's sort of just something you have to learn the intuition for what'd be right for a dish for your taste buds :/

The answer to "a pinch of salt" is that you "season to taste". Literally, taste it, then add more if it needs more. Your pinch and my pinch will be different, because you and I will like different amounts of salt.

And it's actually nearly impossible to find "a pinch of salt" in a recipe these days. Most recipes will give you exact measures for herbs and spices.

A pinch is 1/8th of a teaspoon.