I suspect it's very difficult. Later in life most people have coupled up and had a family, and that's where all their emotional investment goes. Before coupling

I suspect it's very difficult. Later in life most people have coupled up and had a family, and that's where all their emotional investment goes. Before coupling and family, in late teens and twenty something adulthood, singletons have the bandwidth for the kind of deep friendship you describe. I know I did. So I think your ultimate solution to the problem of loneliness is the same as that of most other adults - a romantic life partner. In the mean time, I'm going to make a deeply unfashionable suggestion: what about joining a 'church' group? Since you're from SE Asia Christianity may not be the right tradition for you. Perhaps a Buddhist or Muslim congregation may be more appropriate. A faith community may well be the way to find the automatic acceptance you need.