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should work let the solution sit over night for max results and strain so that there are no solid particles to clog the nozzle.
also cooking to get the maximum garlic out is also a good idea which you can try

some places also sell that ready to use garlic paste if u do not get the garlic that can be tried too though not sure if it has any chemical or preservatives

The idea is to reclaim your territory by introducing smells, sounds or anything else that makes them a bit uncomfortable and nudges them to leave.
So going forward it is finding the thing which works 4 u via trial and error