You must first consider the main issue you face when it comes to accepting gifts. For this, you might have to think hard and recall the events from the past, realising how you reacted at a particular occasion. This will help you in listing down the issues you faced in the past and then you can think of ways to deal with them.
After you know your problems, you should discuss them with your close friends or a family member as he/she will be able to give an honest suggestion.
You will have to realize that not all gifts come with strings attached and sometimes people actually care for you and simply wish to give you something special.
Remember, the effort behind a gift is worth more than its price. If you receive a gift this year, think about its value in terms of the effort behind it. If someone has gone out of his/her way to surprise you, you should appreciate it.
When you actually receive a gift, you should smile and thank the other person. Depending on the situation, you can either choose to unwrap the gift at the spot or keep it for later. If you open it there, be sure not to criticize the gift or be visibly disappointed if it is not something you like. Give positive feedback and once again, appreciate the thought behind the gesture. If you open up your gift at home later on, be sure to give the person a call back or write to him/her about the gift and how you like it.