Aw, I'm really sorry to hear that! I hope you start to perk up a little soon, if you ever need to chat privately please feel free to PM me! I struggle with mental health issues as well but I find my best coping mechanism is distraction, which probably isn't the healthiest lol but it takes my mind off things for a minute.
I'm playing Shield at the moment, I've also finished the game so I'm working on doing some max raids/filling the Pokédex and training my Pokemon up! I'm really enjoying it so far, usually when I finish a Pokemon game I never bother with the end game content but for some reason I've delved into it this time around! c: is there any reason you chose Sword over Shield? (For me I just liked the colour better lol, I prefer Zacian to Zamazenta)