Once you've baked it perfectly to the exact recipe a few times, then you can start adapting.
Of course, there will come a point in your skill level where you will have the intuition to adapt recipes that you've never cooked before. But many people assume they can do that immediately, fail, then assume they can't cook and give up.
I will say though that the other biggest area where people fail is having a janky oven that can't maintain a stable temperature, or where you set it to 200C but it only reaches 160C. So an oven thermometer is a useful tool to buy.
I haven't made one for a few years, though - having a pie in my house is a recipe for me eating 5000 calories of pie and vanilla ice cream over the next few days.
When my grandma died a few years ago, I asked my aunts if I could have one of her pie pans. Apparently none of her other 17 grandkids thought to ask that - so I got all three (philistines!). Those basic metal pans are among my most cherished possessions.
Once I fed about 20 friends--one of the best days I've lived.
I mean, yes, at worse you burn your neighbourhood down and your dog runs away. But in terms of the more likely failure modes like screwing up the dough, breaking it, messing up how watery it is, etc. you can mostly just keep baking until it's done, mix it up, put into bowls, serve with ice cream, down the hatch.
Pick a country, research what food it has that you've never tried, find a few online recipes and YouTube guides and give it a go.
This was a ton of fun. I have no idea if anything I cooked was even remotely like the authentic original, but it was still a very rewarding exercise.
If you live somewhere with a lot of international supermarkets (the SF Bay Area is great for those) it also gives you an excuse for a shopping adventure for ingredients.
(My favorite recipe we tried with this was Doubles from Trinidad https://www.africanbites.com/doubles-chickpeas-sandwich/)