I got my first delivery of wood on the 15th and started building on the 16th.
By "started building" I mean one of the capenters I shared the space I rented with showed me how to use the miter saw I borrowed. I got emotional support from a friend on the 21st when I put the first screw in. Looking back now I smile when I think about how nervous I was, how I measured everything twice before doing anything.
Fast-forward 6 months and I'm a lot less nervous about a few millimeters here or there. One carpenter told me that "builders don't measure in millimeters".
I recommend you to remember that ;)
The result is that nothing in my Tiny House ended up being perfectly aligned. One wall is a little longer than the other, the rafters aren't perfect copies of one another either.
But the house is standing. And isn't that what counts?