I've been practicing magick for a bit now, and here are some tips I've learned from experience, others, etc. I hope they're helpful to someone.
Designing Rituals - When you design rituals, they don't actually have to have any classical correspondences in them. You could choose to invoke The Flash, and then charge a sigil by playing Injustice, for example, and it works. You can use whatever symbolism, pantheons, fictional characters, and so on, that work to get you the beliefs, emotions, and meaning you need to feel for your magick. Many people may find they can invoke Superman and his qualities, easier than they can invoke, say, Sol Invictus.
Write Your Magick - Write down what you intend to do, what you are going to do, what ingredients you (will/would) use. When you write down your intentions, you are already in the process of manifesting them. Lighting a candle, some incense/essential oil diffuser/keeping charged crystals nearby, and/or taking a ritual cleansing bath beforehand all help to get you into a magical mindset.
Magical Consciousness - This is a concept I first read about in books by the chaos magician Phil Hine, and also by comic artist and chaos magician Grant Morrison, and just the "everyday magic" vibe that people talk about. This is about looking at everything as magick. Everything as inherently programmable with your intent and meaning, and look at everything that happens in the context of magical symbolism or significance. Let your reality become magical.
Substitutions - When you look at spell ingredient lists, feel free to substitute ingredients for other ingredients. some common substitutions include clear quartz being able to replace any other crystal, rosemary being able to substitute any herb, and so on. I've used mowed grass and twigs before, and random stones that I told myself were gems through a process like transubstantiation. This brings us to...
Visualize Your Magick - Everything you do, visualize casting the spell, and getting results, before you cast, while you cast, and after you cast. If you don't have certain ingredients, simply visualize that you do. Cut out pieces of paper and write names of gemstones, herbs, oils, or any other components you want but don't have, to keep in a manifestation box, or satchets. If you can get them someday, you will, if not, you can even skip the physical representation step, and you can even just fully imagine having them, which brings us to...
You in Wonderland - This is a concept that has also been referred to as the "astral temple" by some. Wonderland mostly comes as a reference to the classic story by Lewis Carroll, and some terminology in the tulpamancy community. Essentially, this is a place that you build in meditation and visualization over time, and go back to to perform magick, meditate, commune with spirits, and so on. Anything you can physically do, you also do mentally and spiritually in your wonderland/astral temple. Any gesture, any words, any ingredients, any motions, can all be performed, or utilized, completely in your imagination.
Belief is a Tool - As long as you keep your belief system worked out, and fully invest yourself in it, for the duration of your casting, you will get results. Magick doesn't need to be believed in to work, but you'll get better results if you can truly have yourself believe what you are doing will work, especially during the experience of the actual ritual/casting. Believing in the magick after casting simply requires waiting confidently for results to manifest from synchronicity, deity/deities, the universe, etc.
Clear Quartz, Salt, and Water - All of these things are essentially blank slates energetically, after they've been cleansed. Clear quartz crystal can be programmed with any intent, using the will, so clear quartz can substitute for any crystal, and carrying charged quartz just on its own works well. Water has been scientifically proven to have memory, and have molecular structure changed by certain words, or thoughts, being spoken to/thought at it. Look up images of water crystals, after the water has been exposed to loving, or hateful, language. Drink the water that has been blessed, "gift" the water that has been hexed, use positive water on your plants, etc. Salt can also be used as a programmable crystal, helps to channel, and also helps ground any negativity that might be in your casting.
This will probably do for now. My last tip is to just keep your mind open in magick, and look around you for anything that can be used, and realize that... anything can be used. Good luck, have fun. 🖖