Don't give up!
Imaam Ibn al Qayyim al Jawziyya (rahimahullah), said:
Do not feel weary of standing by His door (i.e. Allah) even if
you are driven away, and never stop asking His forgiveness
even if you feel it is rejected. When the door is opened for
the accepted ones, do not miss this chance and rush
therein intruding, and stretch forth your hands saying, which means,
" Be charitable to us." (Yusuf, 12:88)