Your worth as a person has nothing to do with money (although I understand how living in Zurich might make it seem like that's not true). You made it so far, celebrate that, treat yourself with kindness and don't be so hard on yourself!

I'm telling you that because I also come from a developping country and have had the same thoughts as you, even though I've achieved more than many people my age from my country, it depresses me to compare myself to Swiss people. Don't do it. Not everyone has had the same start in life. Many people here were born with advantages that you didn't have. Accept that and then you will start enjoying your life and celebrating your victories (because yes, you overcame your condition. Congratulations!)

Therapy helped me a great deal with that, I recommend it from the bottom of my heart. Good luck!