Welcome to the forum @Diego_Bastos !
Please do make your next post your Introduction here, which we need per the forum rules and posting guidelines in the FAQ.
Points to cover:
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What is your practical experience in magick?
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What exactly do you practice and how long have you practiced?
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Do you follow any specific system or tradition?
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What are your areas of interest?
Here is a getting started with magick guide. You’ll want to get your spiritual hygiene sorted out, and start work on developing your astral senses, then when you can know you have a decent chance at avoiding impostors and parasites then try the evocation guides we have on here.