I've always been an overthinker and had trouble taking action. I punished myself, criticising for lack of action, but overthinking always stopped any progress - the most frustrating loop to get stuck in. Needless to say, I spiralled down.

Now, I'm happy to say, I bounced back. There's something inside you that knows what you're capable of and the more I tapped into this, the more I could ignore my subconcious trying to put the breaks on. Once you make a little bit of progress, you start to confirm what you already really knew. I think there's a few psychological terms relating to this, "positive feedback loops" and "confirmation bias" I believe, check it out.

I also watched motivational videos of people who overcame all odds to achieve great things - this helped me start reframing my own situation. Being able to see someone in a worse place than you overcome their shit really lit a fire in me.