We have spoken about conscious living before and the difference between other sustainable concepts of living here. The truth is that what one considers to be the correct approach might not be to another and like that, we all have different ways of being more sustainable.
One book that I read through my depression phase that has changed my perspective in a lot of aspects of life was "L'art de la Simplicité - How do live more with less" by Dominique Loreau. Although it seems that the book will only guide you through minimalism, it actually touches other subjects, like the importance of decluttering items and toxic people of your life, or how easy house duties become when you have less items surrounding you.
Have you ever asked yourself how much of your time you spend on weekends cleaning your place? Think if that happens because you own a lot and your place is full or if it's because you don't keep a cleaning daily routine and end up accumulating everything for the weekend. Being conscious is about this, understanding what will be beneficial, if giving a second life to what no longer has a use for you and it's just occupying space and energy or how can you change a habit, by changing a behaviour. When buying something, new especially, think through every purchase, rather than going by impulse: is it better to buy something with quality, perhaps slightly more expensive but that lasts longer or buy a product that needs to be replaced after a couple of times used? Remember that the investment might be bigger in the beginning but turn cheaper in the long term. There are several examples I could give you here, as this applies to anything in life, but fun fact and a lockdown story: my boyfriend stopped going to the barbershop, firstly because they were closed but after because we realised that I could cut his hair and that a good hair machine would cost the price of two trips to the barbershop. You may think that conscious living is all about the planet, but you're actually helping yourself too.