I declare my future self to be another person who I wish to bend to my will.
"bending to ones will" is unprofessional and might cause "retaliation" (e.g. breaking out of the pattern).
You can better better influence your future self by giving yourself an environment where you want to do and enjoy the things.
The classical example to support a long-term bond is by making shared investments e.g. a house. You can motivate your future self to stay in a long-term relationship by building a large shared base. This will give you additional montivation to keep it and the relationship (works the other way around too probably).
The precommitments work best if you are know to hold your word and there are many who nail you to it. But the literal meaning of the commitment allows for interpretation on both sides and can cause side effects indeed.
I try to motivate my future self via long-term development and shared investments.
Here's an internal dialogue I just had.
Q: How do we test rationality skills?
A: We haven't come up with a comprehensive test yet.
Q: Maybe we can test some part of rationality?
A: Sure. For example, you could test resistance to akrasia by making two contestants do some simple chores every day. The one who fails first, loses.
Q: That seems like a pointless competition. If I'm feeling competitive, why would I ever skip the chores and lose?
A: Whoa, wait. If competitiveness can cure akrasia, that's pretty cool!
Now we just need to figure out how to make people more competitive in the areas they care about...