In nuclear chemistry elements beyond Plutonium do not occur in nature and are synthesized artificially. Is it a similar case for Higgs boson too?

If so, how does it give mass to particles if it doesn’t exist? Did scientists create Higgs at LHC in 2011 just to make sure our universe exists through some kind of circular causation?

I’m obviously not understanding this properly. Please dispel my misunderstandings with reasonable explanations!