You need to explore the reason for your phobia and dive into past experiences and the related memories that produce anxiety.
Once the cause for the same is established anti-anxiety medications paired with slow desensitisation would help you cope up with your phobia.
Next Steps
Consult Psychiatrist to start with psychopharmacological intervention and counselling sessions.
Health Tips
Need to psychoeducate about the formation of phobias and coping mechanisms.