I have a number from an instructor at Oxford who does private lessons, did 3 hours with him and everything fell into place well worth the money, makes it so easy to understand. I was having the same problem but managed it on my 2nd sitting as i didnt want to risk it
If you want his Number send me a private message and i will send you. My advice is speak to him at least very switched on
Hope this maybe some help
Good luck in whatever you do