Yes you will get some compensation from the Water MC and ASC - the Houses of Endings give the most compensation because they force you to learn how to overcome the lack of Water in planetary positions.
The Moon is a significant planet because of its rulership of the Ascendant sign, though Jupiter has most essential dignity at your Ascendant - so you might look to Jupiter as a possible chart ruler, especially as you were born during a Jupiter hour. Further the Moon is peregrine in Gemini, and as you have noted before the twelfth is not a good placement and it's also waning.
The Moon gains from its sextiles to Sun, Venus and Jupiter all of which give it some support. It's also trined by Saturn in its own rulership, however Saturn is in the eighth, again not a good placement.
Jupiter rules the Fire triplicity by night so it is actually in an essentially stronger position than the Moon - add to that its placing in the tenth and I would seriously suggest Jupiter as your chart ruler, especially as it trines the Sun and Venus and is sextile to the Moon and Saturn. A well placed and well aspected planet.