Agreed, breaks can open the window where inspiration flies in. bạn could also ask around for ideas, take a walk, paint a little, do another hobby bạn enjoy. Don't worry about writers block, everyone gets it, it goes away in time. Just don't panic and bạn shall be fine :)
Well, that depends on the writer. Where do bạn get your inspiration from? If âm nhạc helps bạn think, try listening to your yêu thích song while bạn brainstorm. If nature helps bạn think, try going for a long walk. Bring a notebook, and write down any ideas that come to you. If art helps bạn think, try drawing one of your characters. Getting an appearance of your character in your mind can help bạn work out personality and traits. Hope I helped! :)
Write a little short story of something else. bạn get some creativity flowing again, bạn can use some of the ideas in your short story for your novel, and if this doesn't help bạn with the novel, then convert your short story into your new novel.