There is a point in life where if you can’t follow instructions for a total of 8 wires and you are 17, you probably are not mechanically inclined, I got my 1st project car when I was 15 and got it running, it has nothing to do with age it has everything to do with the ability to follow instructions, even then he was argueing with me about the craccord needing a P72 when it was my room mates old car and I worked on it a lot, and was there through the swap and knew what it needed to run properly