It's not uncommon for heads to be difficult to remove. There are little slots on the side you can put a large screwdriver or pry bar and pry up or whack with a mallet. Hopefully you'll be golden after a head rebuild if the engine turns over smoothly.
It's also recommended to chase the head bolt threads in the block before reassembly. I'm sure you're already getting good help with this project though
Rising Sun Bio
2F "Brahma" + Lockright, tach, Warn 8274, FJ60 Power Steering,
no more Sanden OBA
1FZ-FE factory lockers +
Safari intercooled turbo, CDL switch, cup holder, Metric TLC leather, heated seats, JDM switches, PUMA OBA.
Warn M12000 waiting for a bumper.
Limited TRD 2UZ-FE SOLD