Yeah, I recently started working (full time) from home too (about 6 months ago). In my particular case I combined starting remote work with moving to another country which made one negative aspect of remote work more acute: social isolation. It should definitely not be underestimated and it is very helpful to build things into your life that involve you in others' lives directly. Additionally having a good routine, and being intentional about it, goes a really long way! Figure out what works for you and what does not. For me, I chose one room in my apartment where I work, and when I leave that room I avoid work.
On the plus side, I think working from home can bring you much closer to family - it is crazy to think I spent so much time at work!! 9+ hours of my waking life was away from the people closest to me. Working from home gives you _a lot_ more flexibility so make the most of that! Wanna work at a cafe today? Go for it! Wanna sleep in a bit? Go for it! (but do not do this at the cost of a healthy routine). Make it a treat yo' self kind of thing. Good luck and hope you can make the most of this new mode!