Welcome to HCM Forum,
I can understand how anxious feeling you might be having specially when medicine not working.
By knowing that increasing dose of said medicine is not helping - means that
1) you are addicted to mentioned drug ( so u now requiring higher doses for similar effect you perceived previously i.e.tolerance,unable to stop urself from taking further doses )
2) there are chances that you might be having underlying untreated psychiatric illness (? anxiety
disorder or other illness) where taking mentioned drug giving just symptomatic relief and not correcting underlying pathology.
Though taking Valium
regularly will help only for 4-6 weeks,later on same medicine become ineffective unless underlying pathology corrected and starts showing its withdrawal effect when you suddenly starts stopping.
So consult in person to nearest psychiatrist
to know exact underlying problem and take appropriate treatment as advised.
Hope it helps.Best regards.