I am suffering from corona my oxygen level is 95 but facing difficulty in breathing. is this is a sign that i will have to go on a ventilator??

Oxygen level of 95 (I assume breathing room air, not supplemental oxygen) is fine. No where near needing a ventilator. However, if oxygen level drops below 90 see a doctor - promptly

If you are short of breath, please see your physician. Monitor your breathing, O2 saturation, treat fever and pain and stay well hydrated. the symptoms may linger and watch for worsening.