No, it is not worth waiting for. If you want to make enough money to buy a house and support a family, you need to cut your losses and take the position in your family’s company. Harsh words, but it sounds like you’ve already come to this realization already. LA, as taught in college, bears zero resemblance to the working world. If you’re in in for the love of the game, then keep going. But if you want to enjoy life outside of the office and have a stable long-term career, do something else.