Casting the whole of your care [all your anxieties, all your worries, all your concerns, once and for all] on Him, for He cares for you affectionately and cares about you watchfully.
(1 Peter 5:7, Amplified Bible)

When the Lord Jesus Christ went to the cross He took all of your sickness, diseases and your sins once and for all.  First Peter 2:24 states, “who Himself bore our sins in His own body on the tree, that we, having died to sins, might live for righteousness; by whose stripes you were healed.”  The Lord Jesus Christ can not take your problems or sickness and diseases without you giving them to Him first!  You must first release all of the problems of your life to Him.  He will not interfere in your life or go against your will.  Your will has to be in agreement with Him.

So Jesus answered and said to him, “What do you want Me to do for you?” The blind man said to Him, “Rabboni, that I may receive my sight.” Then Jesus said to him, “Go your way; your faith has made you well.” And immediately he received his sight and followed Jesus on the road.
(Mark 10:51-52)

When we submit our entire life to the Lord Jesus Christ then we submit our will to Him.  The Lord Jesus Christ wants to live and flow through you to this world unhindered.  When you are in agreement with Him, then your will is submitted to Him.  A dedicated life of praying in the Spirit daily will join you in complete agreement with the Lord Jesus Christ.

Trust in the LORD with all your heart, And lean not on your own understanding; In all your ways acknowledge Him, And He shall direct your paths.
(Proverbs 3:5-7)
When Jesus saw him lying there, and knew that he already had been in that condition a long time, He said to him, “Do you want to be made well?”
(John 5:6)
Cast your burden on the Lord [releasing the weight of it] and He will sustain you; He will never allow the [consistently] righteous to be moved (made to slip, fall, or fail.)
(Psalm 55:22, Amplified Bible)