I'm British through and through, and have lived in this village for over 30 years.
My dc have been right through the local school system and out the other side and are now at work. In all the time they were at school, I met dozens and dozens of other mums. On the whole, pretty much all of them were friendly and chatty at the school gate, but that was mostly it. We were friends with one another, but not on the level you want. After all that time and all those people, I made two close friends. Two. In nearly 20 years.
But... through my hobbies, work, dc's hobbies, neighbours and DH's work and social life I have many other friends too - male and female of all ages and they come from all walks of life.
On the one hand, there's the professor, the human rights lawyer, the accountant, the author, the hospital consultant, the town councillor, the duchess the pop star. On the other we have the firefighter, the farmer, the farmer's wife, the electrician, the nurse, the admin clerk, the mechanic, the physiotherapist, the unemployed, the never-employed. I've known some of them for years and have no idea what their qualifications are, or where they studied, or what trashy tv programmes they watch. We find other things to talk about, and with all of them, the one thing we share is the same sense of humour.
Buy a kettle. Learn how to make tea, and preferably learn to enjoy drinking it.
Above all, learn to listen.