Perhaps now would be a good time to mention I have built a time machine yesterday?
Or rather I am going to start building it tomorrow at .
And when I finish I'll send myself back in time to today and tell myself to start building a time machine.
So I would start building time machine today, and thus I would finish by the same time as I did last time but one day earlier.
So when I finish the second time machine finished one day earlier, I'll send myself forward in time the moment in them after I used my first time machine to go back in time to today.
Then I simply take the first time machine and use the second time machine to go back in time to yesterday and give myself the first time machine and use the second time machine to go back into the original time line hence all things go well as everyme can go back into their own respective timeline as all the first future me would do is go visit the time machine I had already given myself yesterday and use it to return to his original time line...