Promise

I had made a deal with myself
This deal will start from tomorrow

The deal is
After I came back from school
And I take my bath
I only own half to one hour time to touch my computer
If wanna touch the computer again
I gonna finish half or three quarter of my homework first

I conldn't be too cruel to myself
If not I'll be crazy because of my own promise
So I still allow myself to online
Example msn and listen to songs while doing my homework

Is it ok?
Will it be too tight
Or too loose
I don't think so
Now the problem is
Do I manage to follow my own rules?