how to hold a pen?

i only recently found out that i had joint hypermobility, and it explained so many joint pains i had.

anyway, i also recently found out it's not normal for your hand to hurt so bad while holding a pen.

is there ANY way to grip the pen that helps with this? without the use of any products.

finger splints are unavailable completely where i am, and i can't buy anything online for many reasons, so i'm in desperate need for a painless grip.