I’ve really missed my parents and sister during lockdown and missing out on a holiday added to this, however like @stinaaa I opened up (in this case to my SO) and we both spoke and listened and we felt so much better afterwards! We’ve been leaving the flat each day for walks around the town where we’re allowed and plan to give the car a clean tomorrow. By planning each day as best we can we find it easier and have less time to feel miserable.
Being open and trying to plan I feel is important! Hopefully you find something to help you, and feel better :)