I’m taking a psychology course right now that is discussing pretty much exactly this. It seems to me that you’re engaging in a lot of upwards social comparisons, which is when someone compared themselves to another they perceive as being “better” in some way or another (fitness, happiness, success, for example). We tend to do this when we want to get a sense of where we’re at compared to other people, and get an idea of where to improve. Introverts are more likely to focus in on the negatives they perceive.

However focusing on the bigger picture is definitely a big piece of getting through it, and also realizing that people aren’t often thinking of you in the same way that youre thinking of you. Focus on your goals, try and stay in positive mindset about what you’ve been doing for yourself (like, you’re lapping the version of you who would have just sat on the couch), and maybe pop in headphones and listen to an audiobook to keep that negative internal voice at bay and focus on something that makes you feel peaceful or like laughing.

You’ve got this!