retrograde Mercury rules 3rd and 6th house is in 1st house in Aries

As a jyotish astrologer, I would interpret retrograde Mercury in the 1st house of Aries sign as a somewhat challenging placement.

Retrograde Mercury suggests that the native might face communication-related issues, such as difficulty expressing themselves or misinterpretations of what others say. They might also have trouble organizing their thoughts and ideas or struggle with decision-making.

In the 1st house, this retrograde Mercury placement could manifest as a tendency towards impulsive actions, which might not always be well thought out. They could also be prone to arguments and conflicts due to their aggressive communication style.

However, since Aries is a sign of courage and independence, this placement could also enhance the native's assertiveness and self-confidence. They might be bold and innovative thinkers, unafraid to take risks or try new things.

Overall, this placement suggests that the native may need to focus on developing better communication skills, learning to be more patient and thoughtful in their decision-making, and channeling their assertiveness in constructive ways.