Congrats. Everyone remembers their first docking! Don't get complacent, the more you practice the quicker / easier it becomes. A whole lot of planets just got a lot closer.
I think Squad is making a game for anyone that might have an interest in space flight, age is irrelevant. That being said they have done a great job of catering for a wide range of ages, abilities and interests.
I don't think a particular skill or challenge makes you an expert. The ability to visit a planet or make a craft with specific characteristics only makes you an expert at that not the game a a whole.