A First Quarter Square between the Cancer Moon and Aries Sun (3 deg) suggests an emotional crisis. New needs are emerging, but there is tension between wanting to be safe/mothered versus aggressive challenges that push you outside your comfort zone.
The tension is dialled up by the Moon's opposition to Mars/Saturn in Capricorn: blocked actions or the demand for more effort can leave you feeling frustrated, unsatisfied and insecure. And yet the Sun squares Mars, which will fire up that pushy Aries energy. So there's anger, and repression. You could be bruised. Or, if you're doing the pushing, you may bruise someone else.
The key here is that certain needs will not be met immediately. But don't ignore those feelings of discomfort - they're a sign that you're progressing. It doesn't feel good right now, so what can you do (Mars)? Forward movement is essential, but Mars/Saturn will ensure that progress is slow. There's work to be done, but if you're focused and do what you have to do, you'll eventually arrive at that place where your needs are honoured.
This is all self-reliant energy (Mars, Aries, Saturn) - you'll have to look after yourself. We are working up to a Libra Full Moon, and Mars/Saturn will be a crucial part of this. Libra is the sign of relationships, so you're building towards something that involves "the other." But for now, your best approach is to be self-sufficient, and figure out what you need to do to meet your own needs.
Be aware that Saturn delivers consequences, and those consequences will be illuminated during the Full Moon. So even while you're taking care of business, watch your actions. You don't have to be cruel. Setting boundaries does not mean trampling over someone.