First, did I miss where the OP said he was looking to play professionally or did you just jump to this conclusion?
And second, I would disagree with that "lonely life" statement. It is true that many card counter types, especially the solo type players do seem to have that "loner", introvert personality type. And that works well for those that travel the country and world. But it doesn't
HAVE to be that way.
I have built what I think is a pretty normal, stable life playing blackjack for a living. I live with a significant other and another family member (my brother) and a friend in a house in the suburbs (Vegas's version of suburbs). I travel much less than most professional players, making 3-4 short trips per year and 2 of them are as much about visiting friends as they are business BJ trips. Most of my playing time mirrors a traditional work week, taking most weekends off, or "mostly" off, as I may play an hour or so during a trip to a casino for a meal. The only time I break from almost banker like hours is one 3-4 day period per month when I go on the graveyard shift, just to spread my play around a bit.
So, I pretty much work a traditional work week, with lots of free time surrounded by significant other, family and friends. Nothing lonely about that. If anything I don't get enough alone time.