The thing is, I didn't really like school to much, and biology-classes was always either very early or late so tiredness grabbed me, and really I didn't learn much ..and now I work at a hospital and have started really enjoying biology, having small talks with biochemists, doctors etc
And it has gotten to the point where I want to study it, maybe micro biology / bio chemistry ..now to the problem!
My math is useless, and my chemistry is not there, so I want to ..test myself, I just wondered if you had any tasks I could try? Any books I could buy / e-books for free

In advance, thanks for all the replies and please do excuse my horrible English

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