Planning what you want to do without following the others, allowing more time in a place cause you just want it,
feeling free to choose the hotel you want and how much you want to spend, etc. There is nothing better than that. And it is significantly cheaper. In ARgentina this is the case with many people and many times people who are not so young. And, yet they stay longer in each place, move the way they wanted, they never feel they are dragged from one place to the other. And if it happens in ARgentina, why not in the rest?
If you have everything organized, what is the problem.
When there is an interest to understand, spoken language is not the only way to communicate ideas. This is part of the adventure.
The only recommendation is to book in good areas, not necessarily expensive hotels but in good and safe areas where there are many people and restaurants around.
It is easy to recommend the very expensive hotels. Recommending an inexpensive place is more difficult. There are 2/3* hotels a bit expensive for what they are but if they are in good areas, they become a good option.