Pets can tell when you're stressed, upset or nervous. They will always try to comfort you, by trying to rub against you, crawl up on your lap, give you a kiss or just do something silly that makes you smile.
I volunteer at Animal Control. People surrender semi-aged dogs each week. It's an honor to walk, throw a ball and chat with them. While we walk I tell each one how beautiful and good and special they are. They beam with delight. So much easier than a puppy, these ladies and gentlemen need us. Adopt an older dog. Their eyes will light yours up as well.