It's not that you're too unlucky, just be diligent and patient.
It took forever
to find some of the Pokemon I want, (I mean, come on, 1% chance of finding it at all?) but I buckled down, and kept coming back, and eventually catching the thing.
Just keep trying, and the results will astound you.
Hope this helps.
It's great to complete a Pokedex! So I'll need some help...
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