Who says you have to pick just one?
What to Play as White

That's not a problem, thats an advantage. you are lucky to be able to play so many different openings

Define 'strong adults.' If they're suggesting that you have to play just one opening and that anything openings-related is the 'path to success' I'm a bit skeptical to say the least. That being said, you might eventually get better results from sticking with one opening and learning it well, but at sub-master level the only thing you really need to worry about is getting out all of the pieces, castling quickly, and looking for tactics and ways to attack.

For players rated below Master strength, the #1 goal in the opening is to reach a middle-game position that you feel comfortable playing. If alternating between several opening systems according to your mood at the time is the most effective way to achieve that goal, then go ahead. Play a variety of systems, and don't worry about what others feel you "should" be doing instead.

Define 'strong adults.' If they're suggesting that you have to play just one opening and that anything openings-related is the 'path to success' I'm a bit skeptical to say the least. That being said, you might eventually get better results from sticking with one opening and learning it well, but at sub-master level the only thing you really need to worry about is getting out all of the pieces, castling quickly, and looking for tactics and ways to attack.
By "strong adults" I mean national masters and life masters. They believe one should pick a first move and only study it, not to worry about a bunch of moves so that one can spend more time on other things. My problem is that I can't pick one.

Try lots of different openings . Usually i play d4 or e4 and am happy in slav, kings gambit, sicilian :)

Thanks for your responses guys. I think I'll just learn them all, despite the amount of time it can take me.

It seems that you are just beginning to play, as you say it is hindering your "development" as a chess master. I recommend the Stonewall Attack which is exceptionally simple yet exceptionally effective, as well as the Barzca System (KIA) and the Ruy Lopez.

It seems that you are just beginning to play, as you say it is hindering your "development" as a chess master. I recommend the Stonewall Attack which is exceptionally simple yet exceptionally effective, as well as the Barzca System (KIA) and the Ruy Lopez.
I'm not just beginning to play, I have been playing for about six months.

It seems that you are just beginning to play, as you say it is hindering your "development" as a chess master. I recommend the Stonewall Attack which is exceptionally simple yet exceptionally effective, as well as the Barzca System (KIA) and the Ruy Lopez.
I'm not just beginning to play, I have been playing for about six months.
Sounds like you are just beginning then. But the level you've already achieved is remarkable!
I have a HUGE problem, which I believe is hindering my development as a chess player. Unfortunately, I can't decide my favorite first move for White, 1. e4, 1. d4, 1. Nf3, even 1. f4 are all appealing, in their own indivual way. When I try to stick to and create one repertoire, I begin to desire new positions, as I am bored quickly.... I know many of you will probably say, "just pick one and deal with it," but I honestly find it very difficult. I have an odd desire to play ALL styles of chess, but a different one at a particular time according to my mood, what do you, the chess.com public suggest?
Thanks in advance,
A Young Aspiring Chess Player