Most jobs are dull and uninteresting. So unless you are fortunate enough to be rolling in your family's wealth you will just have to suck it up.
Smile, make small talk, be pleasant, call it friendship. It's your network.
Read EVERYTHING before you sign it. Take the time out to read it. Knowledge is power.
If you have dependents, do everything in your power to take care of your health. Your health is your wealth, it really is.
Money can buy you independence.
Be financially independent. Nothing beats the power money gives you to take your own decisions.
If you don't own a house and cannot afford to pay the movers and packers, practice object detachment. Rent leases don't last forever and neither will your children's willingness to physically move every fucking thing you own into your next house.
Things rarely go according to plan. The universe is filled with too many unaccounted for variables. Everything can change in an instant. But if you've financially planned for it, you'll survive the change. Most likely, you are not going to have the time to deal with your emotions. Just move on. Time changes everything. As does context. What troubles you today will not trouble you tomorrow.