Here are some key points taken from the following site: https://www.careeraddict.com/17335/10-signs-you-should-quit-your-job , for details please see that site.
#1 You are not learning anything new
#2 You have lost your passion for the job or for the company
#3 Your values no longer align with that of the company
#4 You are not being pushed to your full potential
#5 You simply don’t enjoy what you do
#6 You don’t get along with your co-workers
#7 You are unable to work with your boss
#8 The company is facing an uncertain future with high risk of redundancies
#9 You have no room for progression
#10 You wake up each day with dread at the thought of work that day
Seen anything inside you? then i suggest you should look for a new job.