You are at your sharp edge of your career, let me explain the both ways in which you can choose your career.

Continue your Job without further studies:
You will lead the same job and work which you were leading for the past 1 year ,the salary you get will be budgeted and fulfilled by you the same way done in the past.

Study for GATE CS 2026
Until you finish your GATE exam you'll be little bit more stressed with your job and surroundings , but after completing your studies in master graduation , you will gain more experience in your field of work and there are plenty of chances you will wither get a good promotion within the company you work or get a good other company with more salary in either way, which makes your life fulfill more than needed.

as conclusion , studying further with doing a job will result in a good future,this is all based on the decisions you make and the hard path you choose.