If your shower head attaches to a hose, there is an easy way to re-aim it.
It's actually the fairly stiff hose that keeps the shower head pointed in one direction or another. The adjustment can take three hands, but if you just loosen the plastic fitting that is on the hose immediately "south" of the shower head, the shower head should be able to turn. Point the shower head in the direction you want and without letting the hose or the head turn, re-tighten the plastic fitting. This adjustment may need to be made several times before it is perfect.
There's lots of advice and information in forums... sometimes it is correct. For example, all of my posts are made by a political appointee who got the job as a reward for contributions to my diesel bill.
2011 Jayco 28.5RLS; 2008 Chevy Duramax; Pullrite Superglide Hitch