You're never going to achieve containment with just contact tracing, testing, and politely requesting that people stay at home. People won't comply. Containment requires mandating compliance:
* Forcibly testing people regularly
* Forcibly quarantining people who test positive
* Mandating contact tracing regardless of personal preference
* Imposing travel restrictions on hot spots with actual blockades
* Restricting any gatherings that aren't essential, with "essential" actually meaning essential (grocery stores, pharmacies, hospitals, etc) rather than politically necessary.
* Mandating correct wearing of masks
* Closing borders or requiring quarantine upon entry
In effect, we need to do what China did. We absolutely lack the political will to do that in the US for a variety of reasons, and so we will not be able to approach containment until we get a vaccine.