Hey, there! Sorry for your frustration.

Originally Posted by: lrmaloneyWhenever I attempt to strum my chords, the pick always wiggles out from between my fingers.

This is a matter of finding the right amount of pressure & leverage to use when strumming.

Have you gone through the Fundamentals courses here?

www.guitartricks.com/course.php?input=1

GT also has two great instructors for acoustic strumming styles. Lisa has lots of great basic strumming lessons.

http://www.guitartricks.com/instructor.php?input=311296

As well as Caren!

http://www.guitartricks.com/instructor.php?input=1796810

Hopefully if my fundamentals courses can't help, then one of those ladies can! Let us know how it goes! And best of success. :)