On the topic of multiple characters, we cannot personally recommend it for the exact reason you are asking for advice on. However, we shall try our best to deal with your dilemma.

We understand the want to play different characters, but not wanting to give any up. You adore playing them, you feel like you see them in a light no one else does. However, then comes along this other character you want to explore–it’s as if being a mother and holding two children; you can’t drop one for the other.

Never feel guilty about being on one account, and not another. It’s unwarranted. The character won’t be going anywhere–we can guarantee that. And, while we’re at it, those partners won’t be going anywhere either.

Another reason for keeping multiple characters is the fact you enjoy the relationships you have established with them, or even writing with other writers. Never be afraid to roleplay with a partner with two characters. If you feel too annoying to tell them you’re another character, then don’t. Start fresh with that and continue happily with the other.

For balancing time, we would have to say that you need to take a long, humongous breath. Spend however much time you want with whatever character. An hour. A day–though probably not much longer than two–whatever satisfies your motivation for replies. Then, move on to the other.