Brother pumpkinbrea,if you believe that Jesus blood was not enough to fulfill the Old Covenant to bring a new one for us,then just throw away the New Testament for it has no meaning at all to any of us. Then prayer means nothing,for we would still be bound by the old law.
But when the Lord appeared to me in a mop closet in college,for I was like many here,but I believed in only one person. ME!!! ( Matt 10:7-11) Since being saved and filled through the Lord Jesus I have done these things,at least for me I believe Jesus was indeed enough for me! I have never raised the dead yet in the Lord,but the others I have seen the Lord preform through me.
Jesus had to die to bring about a New Covenant in the first place. Lets say I wish to give a million dollars to pumpkinbrea in my will,I have to die for you to receive it. but once I die brother you get what was promised to you. So Jesus died so we might receive much better promises in the New rather then the condemnation of the Old.
There is no hope in the Old,and those who do not believe that Jesus was enough,will receive there judgment from the Old law just as they choose to hold fast to. For the law was never based upon any ones faith. ( Gal 3:12-14) It did take the Holy Spirit to show me,so my words will hopefully someday bear witness for what the Lord in all his grace showed me. Blessing brother!