Flying alone from Dallas Lovefield on southwest?

The gates are well signposted, so you know your at gate 10, there might be a sign saying "Gates 8-11" and you would follow that, then furthur on there would be gate 10. Its simple, dont stress you will be fine. If you know other people on your flight, just follow them. Boarding Group A means your the first group on after people with special assistance. Position 58 just means your the 58th person to check-in for this flight, you dont need to physically find 57 and stand behind them.