How to refresh what I learned in Level 2 and 3?

Hi,
It's been a while since I completed my level 3 and I'm now looking at getting back into finance. My worry is I've simply forgot far too much of what I learned to even begin to approach employers and tackle level 4.
What is the best way to go about refreshing what I learned, without essentially putting in months and months of work relearning the entire course? Are there any recommended online resources that would give me a good overview?
It's been a while since I completed my level 3 and I'm now looking at getting back into finance. My worry is I've simply forgot far too much of what I learned to even begin to approach employers and tackle level 4.
What is the best way to go about refreshing what I learned, without essentially putting in months and months of work relearning the entire course? Are there any recommended online resources that would give me a good overview?
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Comments
I've been watching some of the videos provided by https://www.youtube.com/user/firstintuition/videos
They're quite useful.