If they sold you half of your points at Animal Kingdom, and half at Aulani - you REALLY do need to cancel, In my humble opinion, that's a horrible combination.
If you are looking to own 300+ points, you really should check Bay Lake Tower (just about the lowest dues...per year...per point).
If you plan on using your DVC ownership every three years, 300+ points is a lot of points, it will give you 900 points to use every three years. With the newer resorts, that's a Grand Villa booked with a great view category in an off season. 1288 is currently the highest point value for a Grand Villa (Aulani, Ocean View, Peak Season).
Then again, they are building the Grand Floridian Villas, and if things happen as they always have - a 3 BR Grand Villa will be over 1288 for a week.
You definitely need to have a LONG conversation with your Disney Vacation Club Guide (the CM that sold you your points). DVC is a very different system than most timeshare products - and there are some rules that border on crazy - and some that are so common sense they seem like they should be harder.
You could ask a TON of questions, and you would get a TON of answers but you are likely spending in excess of $35,000 just to purchase your points, not to mention your maintenance fees over the next 45+ years. In MF's alone you are looking at WELL OVER $100K over the life of your ownership/membership.
DVC isn't something that you want to jump in to without knowing EXACTLY what you are getting in to.
We bought our first contract thinking it would be our only contract - ehhhh, not so much, that didn't happen. We not have four home resorts - and have purchased two direct from DVC, and two through resale. We made each purchasing decision because it was the right decision for what we wanted, when we wanted it, where we wanted it, and how it would work best for us.
We won't be purchasing more points - we own 'enough' (is there such a thing) - but in all reality we own enough to do all we want.
BUT, you need to understand the most basic elements of HOW DVC works to get the most out of it, and at this point OP, you really don't understand how it all works enough to get your maximum value from your ownership.
CALL YOUR GUIDE!