^ That's like saying thinking of doing work is the same as actually doing it. Protip: it's not. Prerequisite, yes, but definitely two different things. There are two choices when you know you have a sub-par teacher (or just about any other deficiency).
1. Sit there and complain and bitch to all your friends and everyone else who'll listen to you about how your poor results are due to your hopeless teacher and inadequate conditions. That is, do nothing constructive or meaningful.
2. Take initiative and compensate. What this means is different for everyone, but if you're still expecting me or anyone else to spoon-feed it to you, clearly you have not paid attention to anything I've ever posted on this forum. Nobody should know better than yourself what you need, and if they do you need to stop letting your brain rot in neglect.
There is also one more inaccuracy in your post. The results are 100% dependent on the student.
I'm sure most of you reading this are already coming up with objections
ad nauseam, and every single one of those objections are undoubtedly just excuses (hell, you're probably even trying to conjure objections against this; save your energy, I'm too lazy to argue). Unfortunately for you, that's not how life works, and if you're going to rely on your fortune to do something and blame "bad luck" when things don't go favorably, don't expect any manner sympathy or empathy from me (or any sensible person that actually cares about you) when you crash into the side of the mountain of fail in a blazing inferno.
You may have noticed that this point is highly condescending and despises your intelligence in about every way possible (including the general tone and embedded links to dictionary.com). If you feel offended or insulted, then it's highly likely that you should consider what I just typed with at least some degree of seriousness. I may be cynical and harsh, but the only reason I'm posting this is for your benefit and it's a lot better if I'm forward and honest rather than crafty and subtle. Dispel the notion that I get any gratification from doing hurt to your ego over the internet, because I sure as hell don't.
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I'll add to avoid confusion that "you" refers to whoever is reading the post and not kyzoo specifically; he has the right idea.