Those with Venus square Saturn have often had a childhood that was not very loving or affectionate. As a result, this tends to be an area of life where the native has trouble expressing themselves.
A tendency to give love with strings attached (due to this often being the only example of love they received growing up) is common or the exact opposite is a tendency to give so much to others that you consistently refuse (with or without conscious knowledge) to receive what another is trying to give in return.
What it comes down to is not a lack of confidence in general so much as a lack of confidence in an ability to both give and receive love. It is something that takes time to nurture and develop.
Women with this aspect often have no real contact with their dad's or have no father/men in their early lives to learn from. The birds and the bees are often tabu in childhood and in effect are swept under the rug. This can leave any adult who is very capable in other capacities incapable or at the very least uncertain in the romantic department. Men can be a completely foreign territory.
Another possible product of this aspect is a feeling of not having enough monetarily and can make a person hang on to every penny they get. Not because they are greedy or selfish but because of a fear of not having enough.
In looking at your chart I see that Venus is in a grand cross with a square to Saturn, one to Mars and an opposition to Pluto. WOWZERS. I unfortunately do not have time at the moment to delineate this for you, but maybe another member does and will. If not please feel free to PM me and I'll break it down for you, but it may not be right away.