This is Young’s Literal Translation…
Surely our sicknesses he hath borne, And our pains — he hath carried them, And we — we have esteemed (considered) him plagued, Smitten of God, and afflicted.  And he is pierced for our transgressions, Bruised for our iniquities, The chastisement of our peace [is] on him, And by his bruise there is healing to us.  And Jehovah hath delighted to bruise him, He hath made HIM sick, If his soul doth make an offering for guilt, He seeth (sees) seed — he prolongeth days, And the pleasure of Jehovah in his hand doth prosper.
Read this. Then read it again. Then REALLY read it and drink in every word! SURELY he bore our sicknesses and carried our pains! By his bruise there is healing to us!
No ifs buts or maybes. FACT! Believe that Jesus paid for EVERYTHING at the cross – including our healing!