If you have a job now you should probably keep it. I do understand that you might want to change jobs because you don't like your job. It's also understandable that you might want to make more money. There's a couple of reasons to stay. One, this year many will get raises in their present job of which I did get a raise a few weeks ago. Two, there is a decrease in the amount of companies that will hire you if you're unemployed. Three, you're still getting a paycheck which in my opinion is better than not getting a paycheck. Four, it's easier to find a new position if you are employed. Five, your could possibly cost yourself all unemployment if you present employer shows you were fired for cause.
What I recommend doing is that you keep your job and begin searching selectively for a new position. Don't just apply to every position, make sure you fit 80-90% of the job requirements before you apply. By doing that you've eliminated most of the reasons to not select you. DON'T let anyone at your present employer know that you are looking if you can help it. Looking for another job is one of the reasons for people being fired the last three and a half years. You don't want that to happen to you also. Make sure your resume, cover letters and profiles are up to date and posted online.
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