All single-reed players have gone through this- “Warped Reeds.”
Especially when it is stored at a dry place or where the climate change or simply not putting in a proper reed case, this wavy tip of reed is troublesome….

There are so many factors to which can influence the development of the saxophone playing. Practicing is definitely one of them but using the appropriate & working equipment, as well as taking a good care of them has a lot to do with the improvement your sound….