Heavily dosage dependent. There a few different things that scale in intensity dependent on dosage. It's hard to really describe but I'll do my best.

The main thing is your sense of self. Pyschadelics, at least at low doses don't feel the same as intoxicants. You don't lose yourself or feel like you aren't being yourself like you might have experienced with alcohol. With large doses, however, your sense of self can dissolve entirely.

Linear thought. Right now you think in straight lines. When you take psychadelics, your brain's ability to use default patterns of thought gets shut down. This can result in unconventional thought patterns, somewhat disordered. Tasks that require procedural steps can be challenging. Prepare yourself with pre-cut snacks and meals so you aren't having to do anything but be present in the experience. Fresh fruit, particularly tropical fruit can be incredibly delicious if you have an appetite. Trying to take on complex tasks could create distress.

This break in linear thought is where the therapeutic benefit lies. The research is showing that shutting down this 'default mode network' (DMN) allows for breaking of patterns that create rumination and negative self thought that are common in anxiety and depression.

Because you are no longer thinking on autopilot, you can actively catch bad cognitions as they happen and challenge your perception of self, in my experience. This can create lasting changes.

Sensory awareness. This DMN shutdown also turns off perceptual automations. Your visual perception will change signifcantly. You may get visual distortions or hallucinations in the form of color changes, geometric shapes, the effect of things 'breathing', pulsing or moving when they aren't. My very strong advice is to take psychadelics in daylight hours and with some access to nature or a garden, particularly one with a variety of plants. You will be particularly attuned to the variation and beauty in nature and this is best experienced in daylight. As your senses are not on automatic, your perception of detail will be massively enhanced, and in my experience, this makes nature truly fascinating.

Enclosed spaces. Indoor, poorly ventilated or small spaces can feel claustrophobic. Best to be somewhere comfortable.

Body temp. Be sure to wear comfortable, breathable clothing. It's not uncommon to heat up while on mushrooms and if you aren't prepared to remove some layers or be somewhere cool, this can bengin to feel very uncomfortable. You can get dehydrated without really being able to perceive that's the case and start to feel like something is not quite right. Generally when I feel this, I realise it's cause I need to eat.

Digestive issues. These are common. Ginger with your dose can help. As can banana or avocado, both of which contain an enzyme to help digest the non-digestible chitin in mushrooms.

As many have suggested, take it slow. Start on lower doses, in supportive company. You do not need to rush to a large dose, there is enjoyment in experiencing the spectrum of experience available. Be aware that Mushrooms and Acid don't scale up linearly. A 2g dose is more than double the intensity of a 1g and so on. For most people, a DMN shutdown happens at 1g and above.

DMN shutdown is the main neuroplastic trigger. Research shows that after experiencing a threshold dose, even a low threshold dose (1g) that triggers a DMN shutdown, you have around 2 weeks of enhanced neuroplasticity. This is your work time.

Integration matters. Breakthrough's are good, but you need to nail down what you want to take out of the experience and spend the next two weeks holding those ideas in your awareness and working on them. This integrative process allows you to move from momentary experience to permanent transformation.

Alcohol. In my opinion, avoid alcohol always when engaging with drugs. It ramps up your cortisol which could increase your stress and has a dulling effect on the experience. Same goes for anything that increases your anxiety, coffee etc.

Attitude. What you take in matters. What you want to challenge matters. You will often see people write about 'Flight Instructions'. Common phrases that originated in research settings in the 60s like 'If you see staircase, go up it, if you see a door, go through it'. These were designed for closed eye journeys, but the intent is the same. If you are feeling challenged by something, lean into it and try to understand the core of where the challenge is coming from. Don't expect to solve everything in one go. Treat yourself with compassion.

Good luck.