Another girls first girlfriend

Heyy Im 16 and been out and proud for 7 years!😆 Im bi and have had been with both genders before in the past. Recently I got into a relationship with one of my friends shes been out as Pan for 2 years🌈😍 but Im her first girlfriend! I feel like if I mess this up it will ruin her whole look on being with a girl😫 advice??