Act like a beggar who does not back away when he gets more alms [than he asked for], but offers thanks the more fervently. You too, should not back away and say that you are not worthy of receiving greater graces when I give them to you. 

I know you are unworthy, but rejoice all the more and take as many treasures from My Heart as you can carry, for then you will please Me more. 

Oh, 
how I love those souls who have complete confidence in Me — I will do everything for them. — Diary, 294 st.Faustina

Mark 11:24

"Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours."