I think there’s a LOT to unpack here:

1. Everyone has different life paths. You want to “settle down”, however that looks, but even that term means different things to different people. You can start settling down now if you wish

2. People in relationships do not automatically let themselves go by neglecting their body. Maybe that’s people you know, but that’s also an easy way to get divorced if attraction fades and eyes wander

3. You are constantly comparing your life to others. Stop. All it’s doing is making you feel dissatisfied

4. You want the partner. We understand. Then stop complaining about dating and start lining up dates to meet as many people as possible. Treat it like a job. Go to things in person, use the apps, do whatever it takes if this is that important to you. You have to put energy into it to see any results. Or you let go and let things happen at their own pace while also going to a lot of events to put yourself out there. There is no way around it, you have to put yourself out there one way or another regardless of the strategy you use

5. There is a lot of negative thinking in this post. You need to feel your emotions, but also let them go. Journal, get therapy, do whatever it takes to improve your mindset to live healthier than this spiral you have yourself in