That short answer from your mom might be twelve hours of work talking, not a verdict on you.

Tone often belongs to the day someone has had rather than to you. Tiredness shortens sentences, and the listener, who was not there for the twelve hours, fills the gap with a reason about themselves. You end up reading a mood as a judgment and carrying it around all evening.

Before you decide what a short reply meant, consider what the other person has been carrying. Ask how their day went and listen to the answer. If something actually is wrong between you, you will find out much faster by asking than by interpreting.