So one advice: take care of your back. It's easy to sprain it, hard to heal it back. You're a developer who mostly sits all day, not a pit worker handling a pickaxe all day. Beware especially of overloading your back due to unavoidable social situations. A friend asks you to help him move the furniture. A stranger asks you to help him pick up his handicapped spouse who felt to the ground. Some neighbors decide to do maintenance work around the block themselves (because they enjoy it but you don't) and make you feel guilty if you don't join the communal effort with a pickaxe (literally, that's what happened to me two days ago and now I'm agonizing with back pain).
Protect your back at the cost of being rude or a jerk.