There are always exceptions, and some suburbs are unique (Some. Many are indistinguishable from one another). However, if we are going by stereotypes, you may find living in the stereotypical burb hard
for you, since you are used to living in an urban environment with no car. Again, exceptions exist, but the stereotype is that you'll need a car to get everywhere. Public transportation will exist, but it will not be as robust or convenient. You can find a nice location that is a 15 min bike ride to a store, but that may wear on you if you were used to 5 mins rides before. Bike infrastructural can be non-existant. (you mentioned public transportation, but not sure if you're a biker.)
Why are you getting tired of urban life?
You mentioned too many people. Well, if you move to a suburb, that problem doesn't disappear. There will be less people living around your immediate home, but when you drive to the store or anywhere else people want to go, it's gets crowded there also.
You also mention living near certain central business areas/downtowns. Well there, you get both the drawbacks of city living (crowded), and the drawbacks of suburban life (less diversity of things to do, need a car to get places).
And things go so much later here than before.
Not sure what this means. Do you live over a nightclub?