Say this dua while in sujood
Allahuma yaa muqaliban quloob thabeetil qalbi alaa diinik
Allahuma inni as alukal jannah
Allahuma inni as alukal khusnul khaatima
Allahuma ruzuqni tawbatan nasuhatan kablal maut
Rabbi jaalni muqima swalat wa mindhuriiyat.