ultimately all that matters is doing it; ANYTHING else is just excuses. this is not a particularly popular perspective here in the degenerate West, and I'm pretty grateful to have been raised in a culture which doesn't tolerate this kind of idiocy (post-Soviet)
its all excuses
its harder for you to focus? sucks! work harder than the other guy to learn how to do it. the extra effort will make you a better person.
you get easily overwhelmed and melt down? sucks! learn how to manage your emotions and arousal level such that you melt down less often.