i searched a lot when i first started, but ended up figuring it out myself, and i can't imagine how much more steep of a learning curve it would have been if i didnt' have a bit of a hobbyist background in control systems and electronics (which lets me make some pretty safe assumptions about how something should work)

it is hard as a beginner for sure, and even more of a pain if the platform you're working with isnt' very popular

many of the beginner tutorials out there are incomplete/useless/out of date, but there are a few good writeups on forums (especially this one) as a starting point. the rest of the tutorials are more advanced, for someone who already knows how to tune.