Mistake: Envy

Proverbs 14:30:
A sound heart is the life of the flesh: but envy the rottenness of the bones.

You can literally get “jealous sick!”  Envy can cause physical breakdown in your body.  You can’t expect to be healed while willfully holding onto something that God says will make you sick any more than you could expect to be healed of lung cancer while smoking six packs of cigarettes a day.  There’s no point in trying to get healed when you are choosing to make yourself sick.

Song of Solomon 8:6:
...jealousy is cruel as the grave: the coals thereof are coals of fire, which hath a most vehement flame.

Galatians 5:19-21 (excerpted):
Now the works of the flesh are manifest, which are these;...envyings...of the which I tell you before, as I have also told you in time past, that they which do such things shall not inherit the kingdom of God.

You will have a hard time receiving from God if you deliberately hold onto envy.  Repent of it.  Get it out of your life – now.  Otherwise, you could end up in a condition that no one will envy.