how do people actually recreate celebrity outfits without spending a fortune, i can never find the right pieces at the right price

been obsessed with sabrina carpenter's recent looks and every time i try to find similar pieces the options are either the exact designer item which is way outside my budget or completely off base alternatives that do not capture the vibe at all. the middle ground of affordable pieces that actually look like the inspiration seems impossible to find consistently.

i've tried using pinterest to find dupes, tried searching on depop and vinted, even tried asking AI chatbots to suggest alternatives. nothing gives me that consistent result of here is the actual look, here are the affordable versions that actually work.

is there a better system people are using for this or am i just searching wrong?