Suffering from Keratoconus since 2 month

I have early stage Keratoconus diagonosed in both eyes and right eye is more affected. Vision seems fading daily even with glasses and there is blurriness and shadowing/reflection overlaps on texts with minimum brightness and thickness of letters when seen from eyes. On earlier checkups from two different doctors I was recommended CXL + Topo PRK by one doctor (first opinion) immediately in right eye, the other doctor telling me for C3R (second opinion) as soon as possible. However, after finally planning to get my C3R procedure done from a famous eye hospital, the corneal expert told me to hold for 6 months to see progression. My corneal thickness is 472 in right eye and 491 in left eye currently as per latest report as on 24th March, 2021 and earlier on 6th January, 2021 the same corneal thickness was 479 in right eye and 495 in left eye. PFA my recent Pentacam report and suggest me when should I get my C3R done. Shall I wait 6 months or get it as soon as possible??