I didn't use any instructions or watch any videos, and I was pretty intimidated after punching out everything and setting it on the table.
My advice: start with some structures and go from there (if using buildings). I built a couple 4 sided houses, then graduated to a house with an addition. After that I started a layout by placing all my tiles out to see how it all covered a 3x3 board. Then I just started clipping them together, and adding to stuff. Before I knew it I had a 2 story manor-house with balconies, a second tier of the streets, and a ramped up area.