If you are not afraid of heights and not too slippery up there, they got soft trowl/brush on stuff at hardware store you can slop around on roof even when wet, and will help seal untill roof repair.
My roof too steep and me with fear of heights from fall when young.
It wouldn't be for me but some friends I have used it before with good temporary results.
As you can see from my location, I too am costantly fighting water runoff.
Good Luck to you and yours....8-[