This can get very addictive. Once you taste the results, you'll want more and more.
You'll keep telling yourself "i want to make x / month and then I'll take it slow, but that might not happen as you just want to build up MORE.
By that time, you Might not have any friends left because you ignored everyone and they will just despise your success. Hopefully you will have your family because you gave them attention at least.
But i feel you.. i can get zoned in the same way. I could even go without eating the whole day.
I sometimes tell myself "if only I had one year to myself..ALONE to do all the things that I want, without responsibilities..I would get there!"
but Then, looking back at what I've achieved so far and the fact that I want MORE every time I reach my goal, I know that I would never be satisfied just with a career / big income.
A stable family is a far more important, And having a few other people around you is healthy and keeps you motivated. (Deep down we all seek some form of validation from our peers and sharing(Not bragging) your success stories with someone other than your wife and kid feels good.
So do keep in touch, at least answer Some calls from the people you want to keep around.