In chess just playing many games is not everything , my suggestion would be after playing games you should take a break after that come and analyse your mistakes that will help improve .
regarding dealing with elo loss anxiety and things , simple suggestion and effective one is give it time . sometimes as human phycology we try to achieve something so badly that when we start to go backward in it we feel anxious and depressed . so try taking few days off .
you must have also heard people talking about taking breaks from their work and going on vacation , similarly take few days off , after that when you will play again you will have fresh mindset and will be motivated enough to keep playing .
apart from that if you wish to improve game this might help you just give it a try - https://www.chess.com/blog/TheMonkPlayingChess/the-first-step many beginner players have found it useful
I often feel self-conscious about my Elo Rating. I feel rather discouraged from playing Online matches since I often worry about losing my Elo and going down a whole lot. Does anybody have suggestions/advice on how to lower my Elo anxiety?
Also, Please don't say something like "Just play Casual Games!". I get it, but I still want to gain Elo and play Rated. I just want advice on how I can be less anxious about my Elo rating going down from losing games.