I never cared about what I looked like, but Covid scared the living shit out of me - it took that level of fear for me to turn things around.
Before it I ate crap and didn't do any movement or exercise at all, I was always knackered and putting on more weight.
I researched various diets and thought they were mostly a load of nonsense. I worked out the basic idea of cutting processed food and sugar, which was literally my whole diet. The first few weeks were awful but then I adjusted and it was fine. I started logging calories in and out on my Fitbit, and lost all the weight pretty quickly.
After a few months I realised I needed to build muscle more. I bought a rebounder and had so much fun exercising for the first time ever, I could cope with being out of breath, and this has led over time to me doing all sorts of daily exercise and LOVING it.
I joined a Fitbit group linked on here where we still have daily and weekly challenges that led me to up from 5k to 20k steps a day easily.
These days I have endless energy. It is fantastic having muscles and feeling stronger and smaller, and it's improved my mental and physical health no-end. I wish I hadn't wasted those years. Start now OP while you have a moment of momentum!!
Baby step recommendations: cut out sugar, eat more veg, and start some weightlifting and walking.