Please help!

i have been taking lessons for 2 years now and have failed a test already, i have another booked in a few weeks.

My biggest problem is planning - i keep making the same mistakes again - i cant seem to follow lanes, u know the complicated ones. And i cant seem to understand complex junction. I drive with my hubby as well but i dont seem to be improving - im just sort of stuck. I just dont seem to be plannning ahead and often lose concentration. It so fustrating because i dont know how to improve and i feel like i cant be bothered anymore.

Has any1 been through this...please help..i feel like im on autopilot now..making the same mistakes again.

mrsN