A. Firstly you need to repent for being negligent in this regard, for it is sinful to delay Qadhaa fasts without a valid reason. May Allah Ta'aala accept your Taubah, Aameen.
Fidyah will not compensate for the missed fasts. You will have to keep Qadhaa of the missed fasts. If the next Ramadhaan comes and all the Qadhaa have not yet been fulfilled, you will observe the fast of Ramadhaan and after Eid, continue with the Qadhaa of your missed fasts.
May you be granted an accepted Haj, Aameen
Moulana Yusuf Laher
Checked by: Mufti Siraj Desai