Hey , I recently tried to make my Practice session more structured. All in all i don´t really no what to do. At start i do a warm-up and at last etudes or working on a solo etc..But between that what should i practice and focus on during a session. Surely there are some parts like double tonguing or so that i want to get better at. But i don´t really understand what to do, it seams that i can do so many things and try to get a better technique.

Thx

Your problem can easily be helped by a private teacher. Someone who can evaluate your needs and proscribe a regimen to correct or fulfill them. I can easily tell you what my practice schedule is, but that may not be the best for you -- in fact it probably won't.

Remember, practicing what you are already good at won't make you better. Practicing something you can "sorta" do helps a lot more. When the "sorta" task becomes easy, there should be another thing that has moved from "no way" to "sorta".