Understanding my prescription?

I had an eye test today, but didn t have much time to ask about the details; could somebody elaborate based on the picture below? I was told that I am not long or short sighted, but that I have astigmatism… What exactly does this mean?



Also, the optician recommended I wear glasses for a few months before lenses, however I really would like lenses, as I want to wear these mostly, and also need them for sport etc. Is this a bad idea?

Thanks.
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