Put Out an Eye of One Who Recalls the Past

"Put out an eye of one who recalls the past" - says a Russian proverb. If to take a risk and to recall the past, I can speak about many opportunities to realize myself that I missed in my life. I could have been a good researcher in bio-chemistry if I continued with it. I could have been a good classical music composer if I didn't quit a music school. I could have been an actor or a scenic arts director if I continued in theater. I could have been a lawyer owning now an office in Riga if I listened to some advices. I could have been a good husband and a good father if I were more clever about my personal life. I could have been a good software engineer or consultant if I didn't start a ph.d. in temporal databases. I guess with such temps I will end up as nobody in some waste bin. However, it might have been my destiny from the beginning which I should accept and all these opportunities are just for teasing me.