This post has the same plot as the movie Yesterday from 2019 where only Jack (and Liz and Leo) remembers to The Beatles.

Probably all of my therapists would say, a good sleep is a better choice any time, with a proper sleep schedule

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Looks tasty!

From this angle looks pretty old btw

Hey,
Send me some info pls

Every time you finish a small task, Say something positive sentence or write it down. Like
"I solved this task, I'm proud of myself"
"I'm done, good work"
or just a
"yeah dude, awesome work"

If you finished every task, you can get some treats, slice of cake, anything.

Keep up the good work!

Like in game dev:
you want to write a character controller, that can be a big bite for the first time. Make some small tasks,
- keyboard input reading
- mouse input reading
- move the player etc.

- Be consistent, and set small (tiny) goals.
- Don't be shy to praise yourself if you finished the task
- Learn to catch your negative thoughts
- Reframe them, into at least neutral ones
- Be patient with the result, overriding 10-20-30 years of negativity is not an easy and fast task

So for balancing out that "I'm stupid in this shit" you need to think ~5 times "I'm good in this shit", and this is just to neutralize the negativity.
Instead of destroying yourself because your expected result doesn't come.

There are few things what you can do:

It's a feature, not a bug!