Answer:
You did not blaspheme the Holy Spirit or you would not be worried about it.
One of the Holy Spirit’s job is to convict people of their sin. You are being convicted of saying things that were not right in anger, but blaspheming is something more than saying something wrong. If you look at the people in the Bible Jesus warned about not being forgiven saying things about the Holy Spirit it was the Pharisees…and they had been following Jesus for more than a year condemning everything He did.
Did they feel sorry for their sin (like you do)? No! In fact they got even angrier and began to plot how to put Jesus to death.
You are only being convicted…and that is the job of the Holy Spirit. That means He is still at work in your life.