How do I write bipolar book characters?

I am fiddling with a new idea right now, it’s about a guy on his way to college. One of his parents are going to be undiagnosed bipolar and I want the mc to struggle while trying to find himself in the new atmosphere. I want this novel to shine light on the struggles with being bipolar, but as respectfully as possible. I want the main character to find out after a while that it is something ‘wrong’ with him too. I personally have never experienced mania or being hypomanic but I do have a very strong grip on the depression part. Anywho, I rewatched shameless and I think Ian is a great character, I want to know is he good rep? Or is that inaccurate behavior from a bipolar person? I’ve done lots of research but from the beginning I only thought there was one type of bipolar as well as BPD. But I now know there a more Severe case and a less severe one. (ll and l) Also yeah, this is slightly inspired by shameless but more AFTG which is a pretty unrealistic drama trilogy about a boy on the run from his serial killer father. The novel im planing on writing isn’t supposed to be mega realistic but I still want your take and opinions on it. Like one thing I want to understand more about is what you feel and why act how you act during manic episodes. Like do you completely lose all your impulse control or can you still work just fine? I read that some have it easy while others don’t. I want to be educated as well as possible before I give my take on it.