It is really nice to hear that someone else has frustrations with the instrument. Some days I start to sound almost good, other days I might as well be playing with my elbows. But it's fun and I keep trying!
Try the Old Town School of Folk Music. I know they gave Anglo lessions at one time so they might also give English lessions. If not I'm sure they could point you in the right direction.
Here's the web site http://www.oldtownschool.org/