Moon in Capricorn
Feeling is managed rather than expressed, and competence substitutes for comfort.
The Moon is the sign that matters most here
Ask a Western astrologer for your sign and they answer with the Sun. Ask an Indian astrologer and they answer with the Moon, because in jyotish the Moon carries the mind: how you take things in, how you settle, what you need to feel safe. It is also read in the sidereal zodiac rather than the seasonal one, and the two have drifted about 24 degrees apart.
The practical consequence is that roughly four people in five get a different Moon sign here than in a Western chart. If you were told your Moon was in Aquarius, Capricorn is the sign directly before it, and this is the reading jyotish would actually use.
What a Capricorn Moon is like
A Saturn-ruled Moon grows up early. A Capricorn Moon takes responsibility before it is fair to, keeps its difficulty to itself, and treats emotional need as something to be handled privately. What looks like coolness is usually a very old habit of not being a burden.
Your Moon is in Capricorn, which means you carry your feelings with dignity and show them to very few. Your love language is responsibility: showing up, handling it, being the steady one.
How it settles, and how it strains
What settles it. Work that is going well, and a structure that holds. Being trusted with something settles it more than being comforted.
Where it strains. Loneliness that never gets named, because naming it would count as complaining.
The birth stars inside Capricorn
A sign is 30 degrees, and a nakshatra is 13 degrees 20 minutes, so Capricorn holds one whole birth star and shares the rest at its edges. Your nakshatra refines this reading considerably: two people with the Moon in Capricorn can be very unalike if their birth stars differ.
Sidereal positions use the Lahiri ayanamsa, the Indian government standard. The Moon crosses a sign in roughly two and a half days, so a date alone usually settles it, but a birth time removes any doubt.