Read Mark 7; then Mark 3 and 4. Keep your covenants ( love your neighbour as you love your self and love the Lord thy God with all your heart-you have two covenants right there; see?) and eat the shrimp. You can't expect to walk on water now or receive a miraculous birth if you can't even ask God to help you perform the "miracle of forgiveness". See John 20 and ask for more of the Holy Ghost. Jesus is a friend that sticks closer than a brother and  as such, is possibly, his single greatest miracle in a nutshell. Lazarus was raised from the dead as well. Being raised from the dead is not any harder than a miraculous conception. The point is to just believe that, with God, all things are possible.  The Wright brothers held this belief long enough and there you go; Mach 4  with zero emissions about 57 years later.  Is it a greater sin to eat shrimp or to leave your husband or wife as in Proverbs 2 or 7?  Choose your sides. It's a buffet out there.