How can I have a better relationship with my family?

Just showing up when there are family events or occasions is a good start. You may not feel like attending but try and push yourself to do so. Becoming more available and when attending a family occasion you could show more of an interest in what they have been doing or how things are going for them. Speak to people individually as well as in groups and be interactive. You can choose what you would like to disclose to your family and what you don't want to. Just because they are family doesn't give them a free pass into your entire life. I'm sure there are some things you want to keep private and to yourself and there is nothing wrong with that. The only thing I would try to remember most is to try and be age specific. After doing the pleasantries and a quick catch up about what they have been doing - be selective - not everyone will have the same interests as you but if you don't ask you won't know hey? Our families can be very surprising when you least expect it. Personally, every now and then, I like to get a small gift or something that will mean something to the person I am giving it to. You may come across an old book in a bookstore or an item in an "Op" shop that just screams their name at you. If you have the funds, maybe get them the gift and surprise them with it when they least expect it. Do it when it is just you and them and just say you saw some thing and thought of them - then present them with the gift. It doesn't need to be expensive or extravagant - they will acknowledge in some way that they know you have thought of them and they will be grateful (even if it is something they already have or wouldn't have bought for themselves!!) :)