Two, Gateshead is English-speaking (not Yiddish). And plenty of Israelis and other non-English-speaking people go to both Gateshead sems and all the yeshivos. The OP’s level of English sounds like she’ll get along fine from reading the post.
Three, Gateshead is in Tyne and Wear, not Northampton. Geordie is the specific dialect of the Newcastle/Gateshead area of Tyne and Wear. Residents of Sunderland, also in Tyne and Wear (about 15 miles from Gateshead), are ‘Mackems’ and will probably inflict serious bodily harm upon you if you call them Geordies. Although, yes the Geordie accent is a bit difficult to get to grips with. But honestly, you go to sem for the sem not for the local wildlife. And the Rabbonim in Gateshead speak a perfectly comprehensible, unaccented (for the most part) English.