As you are already aware that you have OSMF, there is likelihood of it turning malignant but is it or not no one can say without biopsy.
Even if you dont want a surgery and looking for medical line of management, it’s possible only with a sure diagnosis which happens with a biopsy.
Please don’t lose hope at such possibly early problem. I would still encourage you to keep off all stuffs like tobacco, cigarettes, alcohol, betel nuts etc.
There will be anxiety when such illness is considered but be assured that seeing an ENT surgeon will help you find solutions.
Next Steps
Consult an ENT specialist online with pictures or meet face to face
Health Tips
1. Continue warm salt water gargles
2. Avoid all thongs as advised above
3. Maitain good oral hygiene