Change Is Needed - Talk to Your Boss About It!
A first but simple step to get rid of
the problem of your frustration at work is to have a personal conversation with your supervisor. Simply ask for a meeting, and then, in a quiet moment, address your wishes and criticisms. Be sure not to become accusatory or loud, because that approach can have unexpected negative consequences. But if you manage to point out your problems clearly and calmly, your boss won't be able to close their mind to a constructive solution.
Knowledge Is Power - Keep Learning!
Another way to cope with dissatisfaction at work is to recognize that you are simply underchallenged in your current position. So ask the relevant people inside and outside the company about ways to continue your professional and technical education. Besides a more challenging and attractive job, this approach also has the advantage of better pay.
No Interest in My Job - Become Your Own Boss!
Finally, one more way to deal with this unsatisfying situation. Please keep in mind, though, that this approach is by no means right for everyone. Still, if you feel uncomfortable in your current job, it can make sense to think about self-employment. This path does come with plenty of financial and professional risks, but it offers incredible opportunities for advancement to those who are willing to commit to professional success that benefits their own business. The key here is that you have good ways of motivating yourself, because unlike in your previous job, nobody will be there to help you.