Hello.I comitted a lots of shirk and kufr and blasphemies, that you never imagine of, and i cannot remembre them all of. perhaps worst than pharaoh, i cannot say thAT, Allah knows.Can i be forgiven?

All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.

If you have sincerely repented to Allah Almighty by regretting what you did and quitting it and you are determined not to return to it, then Allah Almighty will accept your repentance and forgive you. Allah forgives all sins if the servant repents from them, even polytheism (Shirk) and disbelief, as Allah Says (what means): {Say to those who have disbelieved [that] if they cease, what has previously occurred will be forgiven for them. But if they return [to hostility] - then the precedent of the former [rebellious] peoples has already taken place.} [Quran8:38]

Besides, Allah the Almighty says concerning those who committed polytheism (Shirk), murder, and adultery then repented (what means): {And those who do not invoke with Allah another deity or kill the soul which Allah has forbidden [to be killed], except by right, and do not commit unlawful sexual intercourse. And whoever should do that will meet a penalty. Multiplied for him is the punishment on the Day of Resurrection, and he will abide therein humiliated - Except for those who repent, believe and do righteous work. For them Allah will replace their evil deeds with good. And ever is Allah Forgiving and Merciful.} [Quran25:68-70]

Moreover, it was mentioned in Sahih Al-Bukhari on the authority of Ibn `Abbas : "Some pagans who committed murders in great number and committed illegal sexual intercourse excessively, came to Muhammad and said, "O Muhammad! Whatever you say and invite people to, is good: but we wish if you could inform us whether we can make an expiation for our (past evil) deeds." So, the Divine Verses were revealed: {Those who invoke not with Allah any other god, not kill such life as Allah has forbidden except for just cause, nor commit illegal sexual intercourse…} [Quran 25:68] Allah also revealed: {Say: O My slaves who have transgressed against their souls! Despair not of the Mercy of Allah.} [Quran 39.53]” [Al-Bukhari]

Dear questioner, repent to Allah and rejoice at Allah's forgiveness and pardon, and do not despair of Allah’s mercy.

Allah knows best.