Saturn is the principle of restriction, limitation, inhibition, contraction. Attacking is a Martian verb.. Saturn 'withholds'. Saturn is also structure, responsibility and fortitude. It's lessons are not always pleasant, but necessary for growth and grounding.
In your chart you have Saturn at your IC, square the Moon/Asc. Keep in mind that this is only a 'phrase' in your chart, one piece of a whole unit.. further, how you deal with the energies represented by these placements is a matter of how well you understand and engage them.
Saturn in the 4th house opposition to your MC could be manifesting in a variety of ways, but the inner reaction is pretty universal.. it could manifest as a feeling of being unloved or unwanted. This is usually most evident in the home growing up.. the child feels that a parent, usually the father, is emotionally distant or cold, unloving. The parent could even be absent.
I have Saturn conjunct the IC in the fourth, square the Moon/DC. In my case, my father was completely absent from my life, and until much later in my life I actually never had ANY strong male influence.
In your case maybe your father is there, but is rigid and reserved, over-practical, or controlling. (Could be your mother too). Or perhaps the parent is NOT those things, but you either perceived them to be while growing up, or there is at least some sense you had that you were never loved as much as you needed to be.
I feel that the Moon-Saturn square is maligned in many texts.. there are all types of gloomy interpretations about being lonely forever and never being able to express ones emotions or be self-reliant. While these traits are no doubt exhibited by many, or even most people with the square, what the traditional and cookbook interpretations fail to recognize is the growth and self-realization that can be achieved. Yes, you may have trouble being self-reliant, yes, you may feel like the lonliest person on Earth at other times. It's ok to feel that way.. it's ok to be really sad sometimes. What I've realized is that if you are always searching for that emotional security you need outside of yourself, you will most often be disappointed to find that there's only so much that another person can do for you. At some point you have to find that sense of belonging within yourself. You have to KNOW that you ultimately are not alone and THAT is what will teach you to be able to be close to other people without expecting them to carry your emotional burdens with you.
This feeling of isolation is probably especially strong for you right now because transiting Saturn is conjunct your natal Moon and Ascendant, and is square you Natal Saturn. All of these indicate times of withdrawal from close relationships, the world, and even your own emotions and self. It represents a crisis of foundation where you are seeing the things that are not working in your life in glaring contrast.
The choice is yours ultimately.. Saturn is only presenting you with an opportunity. Often times it feels like your just carrying a lot of weight around on your conscious. So the opportunity is to carry your own burden for the time it takes and learn why this important. Someone has to do it and it's going to be you. But don't worry so much!!! It's all going to be ok. We all need some attention and there are good indicators in your chart that life will not always be lonely and difficult. You have many amazing qualities and if you are honest with yourself about WHO you are and you don't let the past hold you back there is nothing to keep you from being happy and fulfilled.