Having suffered a lot of things when I was younger, I got a new therapist a few months ago (initially for EMDR), but I have been in the works of just talking things out weekly via telemedicine to go over the past week. CBT, or Cognitive Behavioral Therapy, has been highly effective for me and anecdotally for those with anxiety and depression.

In addition to CBT, I found the following to help as well:

1. Finding a part-time job (non-remote) and exposure therapy at work helped in this part. Most anxiety and depression emerge in college (as it's a great time to find yourself and meet with different personalities in the world that you will one day inevitably work with or see wherever you go, etc.)
2. Having supportive friends and family through open communication. Although I've pushed many people away in the past due to my insecurities, self-doubt, shame, guilt, etc., being available to a few select individuals or making amends to a few friends in the process has been a great asset to have during my process of recovery.
3. Focusing on the present, not the future. If you think about it, anxiety about getting anxiety sucks, and it's a constant loop in your head, which might lead to self-fulfilling prophecies. r/stoicism might be a place to explore if you want to explore more into the philosophers that created it back in ancient times.
4. Putting my mind in check with mindfulness. PTSD and OCD go hand in hand with me, and I have numerous intrusive thoughts throughout the day. Take a step in times of anxiety, focus on some breathing and grounding techniques, and reframe the current scenario as if you're an individual looking at your situation from a third-person perspective. Ask yourself the following questions: Are the thoughts in your mind true? Is there any evidence to back up your anxiety that's building up or has popped up in the form of a panic attack? Are you in grave danger, or is it just perceived?
5. Self-esteem/confidence/habit building: I had low self-confidence and esteem to the point where it was debilitating: agoraphobia, OCD, panic attacks, psychosis at one point where I was hospitalized for three days. I remind myself that I am still alive, and now that it's gotten better, I strive to do what I can every day to stay in a positive mindset; i.e., being thankful for what you have as well as the people you have in your life, taking small steps to build habits (hygiene and my appearance to the outer world impacted me severely during the pandemic, as I stopped going to the gym, etc., so I started to do minor things such as 22 pushups a day. Don't ask why 22 pushups, but just crossing that off my list was an accomplishment in itself. Even a task such as making your bed in the morning when you wake up might brighten up your mood as you have checked one thing off your list!
6. Noticing your negative thoughts with mindfulness that would be continuously on a loop was another factor that helped me gain more self-esteem and confidence, not only in my personal life but also at work. I may not be well at X, but my strengths are Y and Z., So I tried to work on my weaknesses and went different ways to improve them and focus on my strengths and transferable skills that could be marketable for a future job/career field.
7. Less Screen Time - No more mindless scrolling through Social Media, YouTube, and Reddit. Once in a while, binging might be okay, but avoiding less entertainment and using the internet and our smartphones as a tool to be more productive might have a positive effect on those with anxiety as well, as I and others on this subreddit might be facing the same struggling with comparing yourself to people on your Instagram pictures, LinkedIn posts, and Facebook feeds. Your brain needs that dopamine rush, but don't give into it. The same can be said for others addicted to video games, pornography, sex addiction, and other bad habits that stimulate their mind.
8. Signing up as a volunteer at 7Cups - 7Cups.com is a website/app designed for people to lend an extra ear as there is a mental health crisis in the states and worldwide. Volunteering some of my time to this platform has made me realize that I am not alone with the demons I face and faced, that my emotions are valid just as anyone else's, and just talking to someone through talk therapy may help. Definitely recommend people to check it out, as you can sign up as a volunteer (listener) or as a member so that you can vent or get advice; keep in mind that 7Cup volunteers are not trained professionals and, if needed, can recommend you to seek professional counseling or therapy.

Although it's not always a great day, I find myself in a better mood and able to get through most days without just sleeping through the day in a funk of depression and anxiety. Take it one day at a time, and remember that you're not alone. We're all in this together. As cheesy as it sounds, it might be true.

If you believe it, we can manifest that into reality, right?

TLDR; Remember that everybody is fighting their own battle, but not everybody can relate to the way you feel if they've never felt anxiety or any other symptoms you may be facing. You're not alone. We are all one.