A:
What you did
concerning delaying the throwing of the pebbles of the 11th and 12th of the Days of Tashriq (11th, 12th and 13th of Dhul-Hijjah) to the 13th Day of Tashriq and throwing the three Jamarat of the first, then the second, then the third day is valid and permissible, though it is preferable not to do so. As for
performing Tawaf-ul-Ifadah only instead of Tawaf-ul-Wada` (circumambulation of the Ka`bah on leaving Makkah), this is also valid and permissible, if you left immediately after Tawaf-ul-Ifadah, so that Al-Bayt (the House: another name for the Ka`bah) was the last place you have visited before going home.May Allah grant us success. May Peace and Blessings of Allah be upon our Prophet Muhammad, his family and his Companions!