I'm still a neophyte at this phase (more of a scholar, really, because I lack the space to setup a proper altar or have a place to meditate without disturbance), but I'll share a few useful resources with you (I'm just gonna provide links because these are pretty big files):
The Psychonaut Field Manual (https://orig00.deviantart.net/abcd/f/2017/047/8/6/the_psychonaut_field_manual_fourth_pdf_edition_by_bluefluke-d8rjuxc.pdf
) and Condensed Chaos (https://my.mixtape.moe/iwluwa.pdf
) are your best bets for a practical introduction to magick. Pop Magic (http://disinfo.com/2014/10/pop-magic-grant-morrison/
) is a good primer as well, but reading through the longer two in addition to Pop Magic is the best thing to do. These will get you started actually doing magick. The easiest to start with is probably sigil magick, which can be as simple as imbuing a sigil with your stated will/intent and then fapping onto it, but there's a bit more to it than that and there are other things you can do. The cumming-on-sigil method is usually recommended because it's the most accessible.
You're going to want to learn to meditate before you try launching a sigil, though. All the resources I've mentioned describe how to get started with meditation.
You'll also probably want at some point to start branching off into the history of occultism and learn more about the different paths out there (the aforementioned sources are all chaos magick, which is cool and all, but there's a lot more out there). The best resource I know of for that is Stealing Fire from Heaven by Nevill Drury. Unfortunately, there isn't a scan of it anywhere on the internet that I've been able to find (probably because it's an Oxford book and they keep their shit locked down). But I have a copy and can try making a scan of it sometime soon.
That should be enough to get you started. Good luck, and remember, belief is a tool.