Hi Ferdouss, Your travel plan sounds amazing. Bucharest is now also known as 'New Berlin' and great place for parties. If you are visiting this place then do add these things in your plan: Bucharest's old town, explore the streets of the town by interacting with local guides, eat at Food Hood Bucuresti (A food truck). If you are an adventure lover, do go for bike/cycle tour. You can indulge in this activity at Charles de Gaulle Sq. Some local operators are Slow Tours.
Also, if travelling during winters (Dec-Feb) do carry warm clothes as the weather is extremely cold during these days.
Have a memorable trip!