> I have no doubt I could do a good job with just youtube

1. Lack of respect for the skill and experience needed in basic trades: electrician/plumber/carpentry. This attitude "oh there is nothing to it, it is just blue collar work. I can watch some youtube videos and learn it in no time" is dangerous, costly and silly/arrogant. Master craftsman take a long time to learn their trade. Your inability to estimate what is needed and how long it will take and what might come up is going to be a giant problem. Experienced tradesmen have seen the 50 different ways people have screwed up plumbing/wiring/etc and has a good idea how to begin a new project and handle these screwups as they are slowly discovered. A lot of the work you will do will be do to "oh shit X is busted" moments, not "Wow, that went smoothly, X is done. Lets proceed to the next item on the outline of work I came up with originally and have not had to deviate from."

2. It takes a couple of full Xs to get the hang of doing X. Lets take something basic like rocking and taping a room. There is a guy on YT, DryWallGaul, that makes the best drywall videos I have ever seen. I have had a lot of people "teach me the trick to taping" and it never made sense and never came out well. If you watched his videos and practiced hanging sheetrock you could definitely get great walls in due time. The problem is your one year turn around house only has so many walls. I redid almost all of the walls in my house but I never got the hang of it until I hung sheetrock at a 4,000 square foot volunteer project. I went through three left hand mechanix gloves before I got proficient zipping screws into studs. (The let index finger is slowly eaten up from holding the screws) Maybe you can do a good job on the last bedroom but I promise you your first three bedrooms are going to look like homeowner harry went to war on the weekend. How many opportunities to do X/Y/Z do you think you will have in this one year house?

3. Working by yourself safely is tough.(Especially if its your first time ever doing X) Doing good work, safely, alone is tougher. Doing good work, safely, alone, for the first time and finishing in a year is impossible.

My advice is that you volunteer for habitat for humanity or something similar. Get a decent amount of experience under your belt and then rethink this plan. The nice thing about the volunteer "internship" is that you will also be able to get an idea of what tools to buy and which ones you like and you can slowly build up a tool set.

Drywall Master: https://www.youtube.com/user/drywallgall

I can't say enough about Laurier, he is not only a skilled craftsman--which is rare enough-- but most importantly he is a good teacher.