Living with your parents isn't such an issue - in fact it's financially a good way to reduce costs and build some savings.
As for the job, it sounds like you're in a rut. You're not up to working, so you can't complete that CV, and go for a job placement. But something you need to realise is that you need to pull your own weight. You need to be able to work to eat, live, travel etc. As long as you're sitting at home doing nothing, you're not pulling your own weight. There will come a time where you will have to have a job in order to have enough money, and who knows, that day could be tomorrow! It's good that you know that there's a problem here - the next step is going about rectifying it.
My advice would be to get a volunteering job. You're not getting paid yet, and you don't have to go full-time at the start - but it'll help you build that CV, and, more importantly, it'll show you how other people live their lives, and you'll draw some motivation/inspiration from it.
It's not too late to get up on your feet and start working, but remember that every day that you decide not to work is a choice. You choose not to look for a job, or to sit at home and play games. You can also choose to start to find work and pull your own weightx
Much love <3