If you are ever worried you should always call a vet clinic for advice, not message some rando on the internet who will be online goodness knows when.
But you cat will probably be fine without half his whiskers.
Cats use their whiskers to help them figure out their surroundings. The whiskers themselves are just stiff hairs, but the bases are very sensitive. Among other things, they use their whiskers to size up holes and figure out if they’ll be able to fit through said holes. Cutting off all a cat’s whiskers may be something of an issue, but trimming a few shouldn’t be a real issue. They’ll eventually be replaced by new, full-length whiskers.
But yes, call a vet clinic in future. It’s free and probably faster than asking random Internet folks.