1. Do you write every day? if so for how many hours and do you set yourself a word limit?
--I find that I get burnt out if I write every day. I typically write a few days in a row, then take a break. I always stop at the end of a chapter, because I like to think about the next chapter and plan it out in my head before I write it. And I like to review what I've just written and tweak a bit. On the days I do write, it's 2-4 hours in the morning, and half a day each on the weekends. Usually 8-12ish. On slow work days, I might write a lot longer if I'm revising.
I'm currently on deadline, so I have a pretty tight word count goal. I'm writing 15K words per month right now, plus any revisions I can squeak in once I meet my quota. This is actually going well for me, so I'll probably stick to it even after I turn in my current MS.
2) Is it good to work on a few novels at once or do you stick to one? Ive got 2 going on at the same time at the moment and im not sure if thats a good idea?
--Depends on you. Some people have trouble with two projects, others thrive on it. I always have a primary novel and a back burner novel I'm working on. The primary novel gets my attention until I reach my word count goal, then I'll work on the back burner novel. When I'm not on deadline, I usually set weekly word count goals for my primary, and once I hit that I switch over to the back burner one. It seems to work out that I write the primary one on the weekends when I have the most time, and the back burner one during the week. But if the muse hits me on either I go with it.
I also have other novels brewing, and any time an idea strikes me I make notes in their files. Sometimes I'll write a scene or a few paras.