Hello TBird,
The first thing you need to do is fix the top of your mast so it doesn't leak. All SC products are designed not to turtle with the large streamlined mast section. When you turn over, get off the upper hull quickly or you will drive the boat turtle with your weight even with a mast that doesn't leak. Use the righting system, shroud extension, and right the boat yourself and be on your way again.
The SC19 came with one of two masts. A light air mast, 33ft tall, or a 28.5ft tall mast for windy locations. Which one do you have? The self tacking jib is the answer to single handing a boat with a jib. Set it once and sail to windward all day and you don't have to touch the jib sheet again. Set it once for sailing downwind and jibe downwind all day without touching the jib sheet again. OR... take the jib off and sail unirig on windy days, no problem.
For technical support, check with the factory, Aquarius-Sail.com.
Bill