Help Getting Started with fixing habits

The last 3 years have been very emotionally taxing. life has been harder than ever for me. I lost a lot of my family to covid and though I have been dealing with my grief I am suffering but the sadness feels so heavy some days that just starting things is a struggle. I have ADHD and I am in the worst shape of my life. I used to workout daily all the way through college but I have no idea where to start now to get a workout routine going or get my habits back on track. My daily routine has disappeared and I barely stick to medication routine. In the past the gym saved me from hard times but it feels impossible to start now. I have my own equipment but look at it and then choose to do anything but workout. It is affecting my life and I am caring less about grad school, my job, future opportunities.

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TL;DR I wasn't sure where to start on this sub or what things could help me get back into working out and a better daily routines. please any help or reference posts that could help are appreciated. I don't want to throw my dreams away.