Overeating Buffering

Hi !
I think I am using food/sugar products as a reward and also I overeat as a way to cope with the lack of a family system. I am single for almost 2 years and also live abroad away from my parents for more than 15 years now. Although I feel good by myself I do think at subconscious level I feel alone and perhaps unsupported due to the clan separation. I also think my support system here is a bit weak…few real friends. So I would need to feel stronger without rewarding myself with extra food and irrespective of the people that support me or not. Thanks