The CFA Level 1 exam is essentially every accounting and finance class you took as an undergraduate rolled into one exam. Regardless of your background, you will have to spend a lot of time preparing for this exam. 250 hours of studying are recommended by the CFA Institute but realistically you should put in 300 hours to be properly prepared on exam day. There is no shortcut to this exam. It's going to take time to learn the material. If your accounting knowledge is weak, review the notes I have posted in the CPA sections. These notes are simply a template to study with which hopefully helps you identify your strengths and weaknesses.
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