M/20 Severely overweight and looking for ways to exercise

Hi all, this is one of my first posts on reddit but I'm looking for some advice. I'm 20 years old and extremely overweight (5ft7, approx. 430lbs) after having continuously gained weight since around 2020, but with the most weight (100+lbs) being gained just in the past year or so. I've started looking at trying to lose weight because of how much it's starting to effect me and limit me each day, but because I've let it get so bad I'm really struggling to find any kind of exercises or fitness routines that I'm physically capable of, like even when I search for beginner stuff it's too difficult for me. Can anyone give me any advice on how someone my size can get started with moving more and exercising?