Sorry sister this might not sound good or like the reply you need but it may help little.am still a learner too.
Weather the snake is spiritual or physical God has given us dominion over it according to genesis 1:26, "And God said, Let us make man in our image, after our likeness: and let them have dominion over the fish of the sea, and over the fowl of the air, and over the cattle, and over all the earth, and over every creeping thing that creepeth upon the earth." And He went ahead to curse it in chapter 3:15 , "And I will put enmity between thee and the woman, and between thy seed and her seed; it shall bruise thy head, and thou shalt bruise his heel." He said you would break it's head.forget about the part about it bruising you cos it won't....Jesus said He had given us power and the authority to tread upon scorpion,snake and power of the enemy.
Luke 4:18 says, " The Spirit of the Lord is upon me, because he hath anointed me to preach the gospel to the poor; he hath sent me to heal the brokenhearted, to preach deliverance to the captives, and recovering of sight to the blind, to set at liberty them that are bruised," This is the mission of Christ on earth and understanding it may help us to realise no power is permitted to oppress us anymore. Yes they would be trying cos of their evil nature which Jesus confirmed in John 16:33, "These things I have spoken unto you, that in me ye might have peace. In the world ye shall have tribulation: but be of good cheer; I have overcome the world," but we would always be victorious if we stand in what we believe unless Christ didn't die and raise on the third day and the fact that it's even God's plan to save us from this evil world even before He laid it's foundation,our victory is guarantee as we know nothing can change God's plans. The bible says in proverb 21:30 there is no wisdom,counsel or understanding that can go against God.
Lets think about it, if the whole son of God,Jesus who came as God in flesh could offered himself as sacrifice to deliver us from the evil world or powers that He even created,do you think any power can refute the fact.They know too so they must bow. We just need faith and confidence.It may not be easy truly but we can do it through Christ so sis summon courage and use the authority you have gotten in Jesus Christ against that thing disturbing your peace using some words of faith along with aggressive prayers and do to it as you want. Mind you it might prove stubborn but don't relent....be stubborn as well. Such happened to Jesus too. Keep telling it what Christ had done for you on the cross that nothing can change.As Christ followers, we live in victory always. May God help and strengthen us all.
Pastor will help to do better justice to it....just my contribution.