The Bible is so clear on how important it is to never LOOK BACK. Not at an old position, an old ex, an old friendship, or even old ways that God has brought you out of. There are many people in the Bible but in clear words, God tells us to "remember Lot's wife"; who turned into a pillar of salt! Stuck in time. I pray that when you're tempted to "go back", He reminds you that you have so much to look forward to.
I need to work on being a better friend. I’m just naturally distant and can unintentionally go long periods of time without talking to anybody. I’m trying to break this habit, but it's hard when you're a real-life hermit.
Ages 25-30 are crucial. You’re accepting that your friend group is getting smaller, your parents are getting older, you’re cleaning up the financial mess from your early 20s, managing your career and health. And somehow, you still need to find time to heal your mind.