I was diagnosed with Bipolar type 1.
I also worked in mental health.
The early stages can be tough because the person diagnosed has not yet learned how to recognize and cope with the issues bipolar brings.
It's not hopeless. I finished university, started a stable career, bought a home, maintained some stable social relationships for decades, have a long term romantic partner. There were challenges along the way, but you generally get better at managing them as you go through more of them.
In addition to whatever recommendations the doctor makes , there are some things that every bipolar person can do to make things easier. If my illness is flaring up, I have a simple checklist.
If you notice a manic/depressive flare up, have you ... Slept well? Eaten a remotely healthy meal? Done anything physical? Done anything social? Done anything productive?
Yes, these things will help pretty much anyone if you do them regularly, but they're especially important for bipolar. They're also listed in order of importance.
Especially for type 1 bipolar, lack of sleep can trigger mania. It's also very hard to sleep while manic, which can make the problem worse.
Sleep hygiene and sleep tracking were very helpful for me personally. Tracking helps predict manic phases, and tracking helps see how effective different things are for getting good sleep. Sleep hygiene is a good place to start in terms of trying to find what works well for sleeping better.