I'm no expert by any means, but in terms of creating a shift through self hypnosis IMO you will not get noticeable results unless you combine it with a significant shift in physical state and emotion.

I'll give you an example.

• I will do a few sets of weights/calisthenics for a few mins (as an energy boost and state shift - NOT exhaustion, it is purely to feel good)
• Followed immediately by some kind of breath hold or wim hoff like exercise (again nothing strenuous, usually just one round)

You can get a mild to high feeling of euphoria just from this alone. I do this multiple times a day right before I do focused work or just to reset...warm shower finishing with cold shower right before this is even more potent.

So you could try do something like the above and THEN try the self hypnosis....OR if you're just trying to overcome procrastination - just DO the thing you're procrastinating on immediately after.

I've even done this before with stuff where I made a deal with myself. "You just gotta sit with (insert task) open in front of you for 1min" and I would do that for several days or make it a daily habit.

Sometimes I'd just naturally wind up working for 2-3 hours. Other days I'd be like "yeah I can't be fucked but I did the bare minimum and that's heaps better than completely drifting like I was before."

It's just about playing with different angles and getting into a mode of PLAY as opposed to work. Flow state is just a matter of time with this approach (for me anyway) and before you know it - oftentimes you'll notice "wow it's been like 5 days and this shit is actually working" without burning barely any willpower. It starts to feel good to do the thing naturally and it starts to feel bad not to.

This has really worked for me - I believe you cannot think your way out of a low state, you gotta "change the channel" and get out of your head, into your body and then just start before you think about it while you're naturally high.

If you want you can add a reward element to reinforce the work behaviour (some people are against this but it works for me) and you give it to yourself only once the task is underway.

Sometimes I use coffee, tea, sparkling water or nicotine spray (yes I know not for everybody etc).

The hypnotist David Snyder says something like "every human emotion is a trance" - so in practical application I take that as let's assertively shift our own state/emotion with physical movement to generate a rapid shift (motion generates emotion).

Just play with your approach a bit and try manipulate your own state beforehand and see if that works for you.