I need help Double Tounging, I can`t seem to get it right. I know that it takes some time but I think a year is long enough. What should I be thinking about? Tu-Cu? Do-Gah? I don`t know. Will Somebody help me please?

I find that starting off with doo-Goo works the best, though other teachers might disagree. When using the T people tend to accent it too much.
Practice VERY slow at first. Sometimes it is actually easier to practice it first without the flute just to get the tongue trained. Try doing it in your spare time when watching TV or riding in a car.
Don`t give up, it will come to you. It took me almost a year to get the hang of it.

I found that when I first began none of my teachers method seemed to worked for me but she said try different syallabulls till I found the one that worked best for me. I began by sayind Du-Ck ok it sounds funny but it wocked for me. Try different techniques till you find one that suits you

Leprachaun

Double Tonguing: One thing I want to learn but unable to achieve

Give it some time, you`ll get there. I thought I would NEVER get it and I did.

try double tonguing on each step of the scale as you ascend, don`t go too fast, just keep your throat relaxed and build speed gradually, I agree with Kara, i usually teach doo-goo as it is smoother as you build speed, I use Tu Ku if I want a more accented group of smaller notes