New keys·Feel the bumps on F and J. That is home.
WPM0
ACC100%
DONE0%
fff jjj fjf jfj fjf jfj fj
Left Index
Lesson 1 of 15 in the free touch-typing course — it practises F · J, working outward from the home row. By this point you're typing with 2 keys, accuracy before speed.