If you are struggling with getting the first 5 notes on your band instrument here is a wonderful website that has videos to guide you through each step of playing those notes. It’s especially great for flute and saxophone!
1- Go to https://basicband.info/
2- Select your instrument in the top right menu.
3- Click Video Lessons
4- Find the lesson that works on the skill you want to improve on and watch it!
Hope this helps!