Planets in my houses

Here are my houses will some one help me understand where houses came from or why its a thing. Maybe even what it means for my placements.
Sun is Aquarius in the 12th house
Moon is Pisces in the 12th house
Mercury is Capricorn in 11th house
Venus is Capricorn in 11th house
Mars is Sagittarius in 10th house
Jupiter is cancer retrograde 4th house
Saturn is cap in 11th house
Uranus is cap in 10th house
Neptune is cap in 11th house
Pluto is Scorpio in 8th house
Moon node is Aquarius retrograde in 12th house
Chiron is cancer in 5th house
Lilith is Scorpio in 8th house
My ascendant is Pisces in 1st house
Mc is Sagittarius in 10th house

I notice I have a lot of 11th houses 10th and 12th also...

Start at the top of the list and Google away.. have fun researching yourself. 🙂

I will tell you that houses are based on your rising sign, the sign on the horizon when you were born. That is your first house and the rest follow suit.