Ketherboy,
I have failed many times with spell work, but like you, I'm good with talismans. They work extremely well for me.
With spell work, I've found, it's not really as good to go for the planetary hour and day, but rather, follow the astrological signs. For example, if you want to do a spell for love, do it when the moon is in conjunct with a fire sign like aries, leo, or sagittarius. I'm sure various books (like the greater key of solomon, or agrippa's three books) or online sources can explain better all of this, but since we seem to have the same problem, then maybe you should try this. It doesn't matter if the planetary day or hour is correct, as long as you are in the proper sign. Right now, the moon is in conjunct with Aries, so that's good for a love/lust working. Just my opinion.
In my experience, btw, working with the proper sign, and using a spirit seal that you put some effort into (writing on a piece of paper is not good enough) can get me results within a week or two.
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