Some mushrooms are poisonous. The simple rule to observe when picking mushrooms is:
If in doubt, Throw it out!
You do not want to wind up in hospital due to misidentification.
Any
photographs and written information on this website is not enough for a
beginner to make confident decisions about the toxicity of a particular
mushroom.
If you are a novice, it is strongly advised that you seek out an experienced mushroomer and obtain in-the-field guidance.