I'm a simple man.Pardon my English.How I know of God...

I'm a simple man.Pardon my English.
How I know of God existence?
When I was a little boy I read a book about Holocaust.
And I read in later years about Jewish people honouring people helping Jews in WW2 escape Nazis ."Righteous Among the Nations" was the name of the award.Maybe I was about 16 at that time.Since then my dream as a teenager was to focus on righteous things.To become a righteous man. O,boy.This was long journey.To cut it short.Done a lot of travelling,searching,travelling.There was still a lot of anger and hate in me.On one day everything stopped.
New man raised from ashes.Happy,kind ,healthy.But foremost happy to upper limits.
Started googling seeking answers.Found many people expressing the same euphoria as me.

Conclusion.Only God could give me peace as He promise in many bible verses.One as example is:John 14:27

Peace I leave with you; my peace I give you. I do not give to you as the world gives.

God bless you all.Search, keep searching my brothers.

Merci.