But what is wrong with the tutorial page then?
Arduino is about hardware and software. So, an "hello world" for arduino is something like blinking 1 led. You take it from there. Yes, it is hard sometimes, but what it takes is practice. Improvise on the existing examples, try small changes.
Use the autoformat so your code stays somewhat readable. If something works and you want to try big changes, save the current file and start in a new copy. If things go wrong, you can always look up how it worked earlier.
But in the end, it just takes practice and time. And if you really can't figure it out, post your questions to the forum.