Definitely talk to a therapist or doctor about the thoughts you are having as soon as possible. Here also they would not admit you for passive suicidal ideation but they would want to help you get help and make a plan to ensure your safety. Connecting you with mental health resources would be their main goal if they feel you are safe and you also feel safe.

For myself I am almost never hospitalized until I attempt but the way my bipolar acts is I am super happy manic although I will get drunk and make serious threats but lie my way out of them once sober. and then suddenly attempt so the full switch from happy to actively suicidal is only hours before the attempt. If I am having thoughts the way you are, I am likely able to keep myself safe and just continue with meds and therapy.

You know yourself best but sometimes we can convince ourselves that things are not the way they really are so reaching out for help before it gets to that point is best. Take care