6 years of unfiled taxes

Hello, I've failed to file my taxes for the last 6 years now (I believe the last time was back in 2017 or 2018) and now I don't know what to do... I've moved states 2 times since then and I have worked in all 3 different states at different points in my life all without filing taxes. I've had about 8 jobs since then but I don't have all my W-2 forms as I never got them in the mail due to my moving. I'm just lost in the whole process now... What steps do I take to set this straight?? Thank you.