I would go back and relive my childhood years from age 0 to 12. Although not everything was perfect (90s economy here was worse than now), I was not depressed, had zero anxiety (social or otherwise) and actually had friends. Like a poster child of optimism and positive thinking and it came naturally, before knowing what positive affirmations were.

Teenage years bought me Celiac, depression, anxieties, insecurities, loneliness so I would never like to go back to them and the same goes for my early-mid 20s. I was 25 when I saw improvement in my life and I am glad that I discovered binaural beats, the power of affirmations and Louise Hay. Going gluten-free also helped as I rid myself by the toxins from wheat/rye/etc consumption.

But I'd also like to make a happy future, that is even better than my childhood in the 90's.