Go to Amsterdam, then go to Brussels and then you will be able to just visit Paris, Even on this itinerary you will not get enough time in each city, but you will be able to explore and bit and see the main sights. These cities are pretty close to each other so travel time is not too bad.
Anything else would just be ridiculous, in your original plan you would only get a few hours in each place before you have to move on??? Just nonsense
What is your budget?? See a travel agent who does this every day and every hour at work. They know the problems in each place. You pick a travel itinerary from their pre-arranged tours. It is not possible to do as much as you think since travel time between places is necessary. What you propose will take at least 3 months and a lot of money.
I hope you realize that this amount of travel is what you do in a lifetime of travel, not in one trip.
You will know in advance what the expenses will be.
I should mention too the cost of exchanging currency. Although the internet said the USD$ to Euro was just $1.26 my own bank charged me $1.42 per Euro.
Brussels and Paris are within a few hours by train from Amsterdam. You can visit the other cities by train, but your entire trip will be spent on the train - including most nights. It will also NOT be cheap as train travel within Europe is expensive.
Idiotic
Sorry but are you crazy?
This is like telling us i have 8 days and want to visit, Florida, texas, north and south carolina, new mexico.....