My insurance plan from work is both expensive and doesn't cover nearly enough. Can I get another one?

Hi, thanks for any and all help.

So I work fulltime, salary, and make a little under $57k in Michigan. I have a spouse who is a fulltime student and works part time, makes ~$11k a year. Our insurance is the one i get through work, and it is a ‘PPO Best Buy HSA’ type with $4k in network family coverage and $8k out of pocket maximum, and the way it works, I guess, is that i have to hit deductible *first* and then the actual insurance starts to kick in. I’ve had this insurance since February, and I see a lot of doctors either monthly, every quarter, or weekly, as well as take medication that amounts to ~$800 or more a month depending on coverage.

However, I’ve only hit $3700 on this damn deductible, and its taking ~$500 a month away on my paycheck for my family. I have medical, dental, and vision, employee life insurance and long term disability at work as well. Essentially, I am chronically ill, have permanent diagnoses that require constant management, and medications that are expensive and yet I need them to function, but it seems my insurance is just not made for someone who is held together by duct tape.

My questions are:

Can I drop health insurance if it just doesn’t cover anything I need?

Is it possible to just drop health insurance at a job and then keep vision and dental?

I am constantly overwhelmed by everything insurance related, and the last time I had to get insurance on my own it was a several week long affair, of which i messed up a LOT of stuff. Is there a person I can go to to help with searching for the best plan for me and my family?