CoC: Dark Corners of the Earth help

I do love this game but have never gotten far in it so am currently making a big push on it. However, have gotten stalled on fleeing the burning bank. I know I am supposed to jump to the half burned away stairs to get to the water tower, but the jump to the stairs seems to be just too far. My health is fine so I don’t think it’s that - am I missing something to make the jump easier?

Thanks in advance!