Yes, this is possible.
If you want to get better at meditation, I’d check out the book The Mind Illuminated. It has step-by-step instructions on what to actually do to get better at each different stage or level of practice. Most “meditation guides” out there basically say “just meditate hah” and aren’t that useful. This one is actually useful.
When it comes to spirits, I’ve noticed that the Enochian Keys and associated angels summon an energy that naturally encourages you to be mindful and aware. This makes meditation much easier, but you do still need to practice. It helps you let go of all the noisy, pointless, hyperactive thoughts that swirl around and don’t really do you any good while also bringing your attention to your experience of the world moment-by-moment. I use the book Success Magick for these spirits and get the Keys from Kevin Klein’s transcription of the Enochian source materials from the 16th century. If you want the Keys I can PM them to you - all sources I have seen other than Klein are inaccurate when it comes to the Keys.
I meditate before doing a Success Magick ritual with the Keys. If you want to get better at meditating, then you should practice meditating. You can practice being mindful while you do ritual magick, but mindfulness meditation really hones in on that skill specifically. The energy of the Keys has been a great boost, but be careful about trying to find a hack or a shortcut as a substitute for actually doing the practice. Just practice consistently and with good technique and you’ll improve.
Similar ideas apply for astral projection and evocation. The nice thing about meditation though is that it also helps you with these practices, but if you want to improve at astral projecting, then practice that, consistently and with good technique. That’s really all there is to it. Most people just aren’t consistent (this is really the skill-gains-killer, lack of consistency) and don’t use good technique. That’s maybe not as exciting as finding the Secret Hidden Way They don’t want you to know about, but really that’s all there is to it. Just practice, consistently and with good technique. Occasionally review your practice and see how things are going and then adjust accordingly.
Also, try not to bounce around between techniques too much. Find someone who has had success with what you are trying to do, learn their technique, and then practice. Many people assume that the problem is the method, but if it’s worked for others, then the method should be fine. Many people are impatient and just give up rather than persisting through the challenges of the practice. If it weren’t challenging, you’d be good at it already. The challenge is the fun part anyways.
Enochian has also been helpful with full visible manifestation. I actually haven’t gotten this in ritual (I don’t really do much evocation nowadays anyways, usually I’m more internally focused for visionary things), but the Keys have caused things to appear on a scrying surface a few times for me. This has happened a couple times for me, and the visions morphed between various images and moving scenes for around 5-10 minutes. I didn’t do anything but watch and let it happen without getting in the way. The Enochian Loagaeth tables (I believe these are what did this) have also caused various “spiritual creatures” to appear in tangible forms. Some have looked like little white energy bunnies that hide in the corner and quickly hop around. One was a little demon which for a moment appeared in the darkness, although with a surprisingly detailed form. Such a good little demon pets the demon.
