In your friendships/relationships, I think it’s important to ask the other person how they like to be comforted. Much like the love languages, everyone responds differently to certain actions during times of stress. Some may like advice or words of affirmation while others may need a hug or someone to just nod and listen. Asking them how they want to be comforted shows that you care about them and want them to feel acknowledged when they’re upset.
The reason lifting weights helps treat depression is because you don’t just work out your muscles. You also exercise the ability to dispense motivation. Build up your power to motivate yourself, you’ll find yourself doing little things that need to be done. It’s not perfect, and it can be a really slow start, but it really does help.
It’s a lot easier to lift a dumbbell a few times than it is to clean your room, but if you push yourself to lift it you will find it easier to push yourself to organize your stuff or do the dishes.