Anas ibn Maalik (may Allah be pleased with him) narrated that the Prophet (S) said,
"Allah, Th Exalted, has said,: 'O son of Adam, whatever you call upon Me for, and hope of Me, I shall forgive you for what have done and I shall not mind. O son of Aadam, were your sins to reach the clouds of the sky and then you were to ask Forgiveness of me, I would forgive you. O son of Adam, were you come to Me with sins nearly as great as the earth and you were then to face Me not committing Shirk (ascribing partners to Allah) in anything, I would bring you forgiveness nearly as great as it.
(Related by Tirmidhee).
Allah is most forgiving, don't lose faith, don't lose hope, always ask for forgiveness with sincerity, and, iA, Allah will forgive your sins.