I never feel bad when this happens to people. When I started playing video games (on a 28.8k modem) there was nobody to help me. I had to figure shit out. And it's so easy now to do things compared to Windows 98 days...
Honestly if you can:
- Download Steam
- Install TF2
- Find and connect to a server
- Find chat/voice chat key to ask questions
Then you can press ESC and mess around with options and figure things out.