I'm painting my bedroom and don't know how to pick colors...advice please?

That was one thing my ex wife was good at lol.

I don't understand colors and how they match up...and I don't know what color would be good for sleeping spaces.

The floor I'm putting down is a wood floor that is maple color and I repainted the ceiling tiles off white...light gray. There are two west facing windows and one north if that matters.

I picked out hunter green. But a sample made the room really dark. The walls were bright yellow before.

I don't really care for brown...probably reminds me too much of changing 4 kids diapers back in the day. Sad to s rape off all the little stickers they put there and the drawings wl be painted over.

I saw some pics where three walls were dark colors and one white but that just adds another color to consider. I tried to hire someone on Craigslist to help but they consider themselves color consultants and want 500 lol. I was thinking 50 for advice.

I tried to be a good dad but in the end not sure it matters anymore