It sounds to me like you are likely in your early 20's or so which is when this sort of thing gets settled. It is a little complicated to figure out at that age how often you should see your family even for people who's situation is not as difficult as yours. It generally kind of works itself out.

To answer your specific question, I haven't seen any of my family in person for 4 years (since my brother's wedding). But I also live in a different country than any of them. I don't actively avoid them. For almost a year now, I have worked at the company owned by my parents, so I talk to them several times a week over Skype, mainly about work related things. Before I worked at their company, I talked to them maybe once a month over Skype. 6 Years ago, before I moved to a different country, I would see my parents once or twice a year usually. As far as siblings go, I don't talk to them as much as I should... I'm way overdo for getting in touch with them actually. I haven't talked to one brother for about 6 months, the other for maybe 2 years! I talked to my sister maybe 3 months ago when she called to tell me she got engaged.

Everyone's relationship with their family is different though and like I said, it's usually some time in the early twenties when it starts getting sorted out what it will be.