It's tough being a VA

I dont think people realise how tough it is being a virtual assistant, after all you are running a full time business. My admin sort of does not get done, I don't have the time. So admin falls behind, not good. My bookkeeping is way behind. I know what is going on, but need to get it down on paper and keep it updated. As long as I work from my work schedule and take the time to put every task that comes in onto my schedule and stay organised,  its ok. But when unexpected jobs come in, quotations which can be very time consuming, telephone queries, email queries that all affects the day to day running.
A full time VA with many clients can be quite hectic especially so when clients give you day to day work, it really can test your coping, prioritisation, and time management skills. This is when its time to think do I expand. What is the next step a 'multi VA business'. Do I want to go this way? Can this work for me, that I don't know and I am very unsure of. Its a large step to take. I am reading up all the knowledge available to me and contacting other multi va businesses to see how they work, I have a good idea what I want to do but is this the way to go. Hmmm.