I prayed, man!
And guess what? Similar things happened to me. But I usually silence them by not wimping out on their attacks, they seem to somehow respect it.
But I'm actually happy about those attacks, it gives me the ability to enhance God's kingdom and pray for those, that need to get saved. (always bind the power spirit and guidance spirits first)
You could even tell them about the Bible's Prophecies and stuff (read revelation infront of them, and when they ask what you'r doing, tell them.)
Of coarse, only when God's timing is right.
Remember that when they reject the scriptures, that it'll be their responsibility, not yours, when they're standing infront of his throne. And when they mock, they're not mocking you, but God (That's right, I wouldn't mess with him either. Ain't very wise.)
Instead of fearing them stand for your faith! And be in control of the conversation yourself.
God will use you than.
And if you believe in the gifts of the Holy Spirit:
Praying in tongues always helps, and ususally God will use you to defend your faith to enhance his kingdom when you do do this
Always remember these:
Heb 13:6
So we may boldly say:
"The LORD is my helper;
I will not fear .
What can man do to me?"
NKJV
Isa 54:17
17 No weapon formed against you shall prosper,
And every tongue which rises against you in judgment
You shall condemn.
This is the heritage of the servants of the LORD,
And their righteousness is from Me,"
Says the LORD.
NKJV
Luke 6:22
22 Blessed are you when men hate you,
And when they exclude you,
And revile you, and cast out your name as evil,
For the Son of Man's sake.
NKJV
God will deal with them, just pray for them, and keep strong in your faith.
Remember, Jesus took all that fear on the cross.
They're not saved man, what else would they do? They don't understand God, Because they've got a dead spirit.
I know how you feel. I had a huge fear of man, I must have been the most self-protecting person here! (had a demon of rejection )
But after my baptism in the Holy Ghost, a big chunk fell off. And God dealt with me.
I hope this was of use to you...somehow.