two questions about prayer, is it bad that i dont speak and is my prayer dangerous?

1. im super duper uncomfortable praying out loud so my prayer is in letter form as though i'm sending God a letter. i'm always thanking him, surrendering and asking for anything that im in need of and praying for friends and family. i also sometimes recount how i felt about my day and give glory to Him.

i have a strange feeling that even though these letters are okay, my power in praying is by speaking it because sometimes verbal declaring something is stronger than just thinking it and writing it. it could be my calling to speak prayer and speak life and this is the enemy inhibiting my power but i'm just not sure.

2. i also feel a strong determination, a very strong push, to fight. i find often in my prayers i declare that i want my faith to shake hell and wherever i walk i will disturb the enemy. i want to be the warrior they are afraid of and like what C.S. Lewis said, when i die i want hell to rejoice that i'm now out of the world. i want to terrorise the devil the way jesus did and i feel this so strongly. and if i do get hurt, im thankful to be important enough to have scared the enemy so much that he hurts my flesh.

but i worry i might get myself into some trouble... should i stop praying for this and just relax lol?