Get a habit of tracking your habits. When you know everything you do while “on autopilot” and why, - you can outsource a lot of chores and work to your “autopilot” self by setting up your routines and habits correctly.
This skill is best learned as soon as possible, and it’s a shame it’s not taught in schools. 20s is a good time - all the momentum you gain within next 20 years can carry you the rest of the way.
Also, don’t be hard on yourself for failing. You’ll see tons of good advice - a lot of it will seem essential (like being financially responsible), for good reasons. Just know that failing at all these things does not necessarily make you a failure or a bad person. Who knows what struggles you might/will face - as long as you survive and take care of your loved ones, you should be ok. Ultimately that is all we can do.
Also, try to engage with physical things more: people IRL next to you, touch grass, craft something with your hands. Of it’s not physical, it exists in your head, - and your head might not always be the best place to spend most your time.