This is difficult to tell without actual examination.
It is good that you have stopped tobacco, alcohol and masala use. But you have to remember that the risk of malignancy stays for a long time after stopping, gradually reduces, and then the risk comes to baseline.
Stay away from the addictions. Eat a healthy diet of fresh fruits, vegetables and salads.
Next Steps
If you feel that there is a definite swelling, which is increasing in size please get yourself examined