Welcome to the forum! 
Fix your “spiritual hygiene” as it’s euphemistically called. Set up wards and shields to keep trespassers out of your space.
We have a few free tutorials and book recommendations here:
Please do make your next post your Introduction here, which we need per the forum rules and see our posting guidelines in the FAQ.
Points to cover:
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Do you have any practical experience in magick?
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If so, 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.
For reference:
The rules are here
The posting guidelines are here in the FAQ
The Terms of Service are here