How do you develop left hand endurance ?

I am a right handed person so my fretting hand is left, how can I develop a good endurance there ? Any like exercises I can do ?

I did a cool thing where you go 0h4h7 on the first string, then move to 2nd string, repeat, then you do 0h5h8 0h4h7 and repeat. It's like a trill, but then my hand wears out and it gets sore.

Why didn't you just post this and the other post in the same thread?

yeah I really should have lol.. i made this first then i was trilling again and i noticed i was screwing up and stuff . I wish I could delete posts and threads.

play scales normally up and down, pick only first note of a string and hammer and pull off the rest BUT do it REALLY slowly. You'll be crushing bricks within a week!

sounds like thunderstuck played wrong lol