These are questions on singing.?

Hey, I am looking for some answers to some questions I have on ones'
singing voice and such. I'm 15, male, and have been singing for two
years without having taken any lessons. I just look up the basics of
singing and how to do it properly and safely.

1. Does the average singer usually sound better when using their voice
at night?

2. If you're a singer yourself, do you often have subtle difficulty
when preforming "easier" or more monotone songs and end up nailing the
ones that are very dynamic?

3. Does having an orgasm really make your voice sound better and more
relaxed?

4. When your voice is fully developed and say you're about 30, will my
voice not be able to register higher notes? My voice isn't very low
actually, it's average.

5. Being someone who suffers from normal allergies, would there be a
vast difference in my voice if my nose is cleared up 100% and have no
trouble breathing?

6. How many hours after you wake up does your voice go into full
throttle(able to preform your top abilities)?

Those are all the questions I can think of for now.