Hello Shai,
I would say the timeline is tight, and for the next month, every minute you spend will have to count. But I still believe that it is possible and you can do it.
It looks like you have a good high-level plan for the next 30 days. One thing I cannot comment on is whether 20 days is enough for you to absorb and understand the material because everyone is different. If I may offer a slight modification to your study plan, try to do some practice early on (perhaps one for your 5th/15th day) instead of waiting till the end. That way you will be able to know sooner what area you need to improve upon.
Good luck and share with us your good news next month.