It is great to chat to you again, while I hear what you are saying, that it is hard at the moment, we here can help you with ways in which you can perhaps turn your day around to make some changes so that you can start to feel a little better.
It is hard at the moment with isolation, however, reach out to your friends, text, they will let you know if you are being a pest, which I am sure you are not. Mostly this is what we are all doing at the moment and I know if I can get to the texts I will reply and have a chat, if not I will get to it soon, but I know my friends are reaching out to me and that makes me feel good, can I suggest that if we all were kind of worried about texting our friends no one would text, and we would all be in silence. Also another thing I wanted to suggest to you, just because your friends "seem" this way... "why I can't just do what everyone else can do. Other people seem to do things and achieve things and for me simply existing is hard and takes effort." Might they say the same about you? What I mean by that is that just because we all "seem" to be fine does not mean we are....the mask that people wear to hide how they are really feeling and coping is a very good one sometimes. You just don't know...in you reaching out to get some connections with your friends you might be helping a friend feel important and feel cared for.
I am so happy to hear that you love playing with your cat, I have three so know very well the joy they bring, and the naughtiness too...being outside is wonderful and video games are a great distraction. I am happy to hear that you do have some things that you enjoy doing. Maybe you can "treat" yourself if you like and when you have say done an hour of study, it lets you have 30 mins on your games, this way you don't feel like you are wasting time on your games, you have earned a reward, you can enjoy your game more and get your study done. It is hard to muster up some motivation but some little rewards you set yourself might help too....like "I am going to finish this task and when I do I am going to watch this movie with some popcorn and enjoy it". Just an idea but I think you know what I mean.
It is an unusual time so we do need to do some self care just to feel like we are ok, in times of isolation and when things are not as they usually are.
I am so pleased you are here to chat, that you can get some of this off your chest, I find writing so helpful.