Frustration of losing games

Hi, I’m beginner in chess. I didn’t know anything when I started playing chess, so I played lot of games and expectedly I lost most of the games. But gradually I learned and made progress but after 500 elo, I started losing many games. You can check my recent games. I don’t know why chess.com give me black side often. I learned the London system and king Indian defence game. I played London system as white, and king Indian defence game as black and I lost most of my games wich frustrated me. What should I do? Should I change my openings? I tried these openings again because I want to integrate into my chess learning? Final question, how much games per day considered as ideal just for fun?

No, don't change your openings, they are very good. And I think 2 or 3 games per day is good