What content are you looking to do?

If it's just normal content, as in MSQ related content and alliance raids (where your DPS is only 1/15 of the total possible DPS from DPS roles), then I would mostly just worry about making sure you're always hitting one of your GCD abilities as they come off of cool down.

Remember that the rotations found on places like the balance are designed for maximum DPS for the purpose of savages and Ultimates, etc. You do not need anywhere near that amount of DPS for normal content.

So I would find a class and figure out a rotation that works for you. As long as your GCD is always spinning (or at least going most of the time), you're likely doing enough DPS for normal content.