It seems to me you have two issues, your dog being insecure in unfamiliar environments, and fear of strangers.
Swi nga endleka leswaku wa karhateka hi sweswo hikwalaho ka swivangelo swo karhi: N'wana wa wena u tshama a ri eka Internet naswona swi tikomba onge a nga ma xiyi makhombo lawa ma nga ha n'wi welaka.