I interpret your question as "Are these similar?" rather than "What should I take?". LSD and psilocybin have different primary effects and different side effects. I think LSD is a stimulant and more enlightening. Psilocybin doesn't cause stimulant effects and produces sweet afterglows. Many people find LSD lasts longer than psilocybin. Both cause visuals, though psilocybin is often more visual. Each person responds differently. You'll learn how you respond through experience. Consuming them and making notes is the best way.