So, that's what happened for that in time,..

..and then, finally, I suppose things began to change. And In 1993 I saw a lot of changes, and I began to appreciate that changes might what may be happening., and sSomebody offered me a job in Novosibirsk. I went there and worked in a company, that company runs ran by a friend of mine - and, actually,. Back then it was then the busiest company in Novosibirsk. We had a great deal of fun there, a lot of deals, and, eventually, I thought, I was having so much experience running a company I might as well get my own business.
So, I established a my own company - well, actually, iIt wasn't a big business then., iIt was a small firm, a rather grotty office in the suburban area - not really the place to have a company when you come to change the world, but there you go.
Eventually, I converted this firm into a really big multifunctional holding. Unfortunately, shortly after itthereafter, my wife decided that she didn't really like the lifestyle that we were now living, which I barely say was wasn't surprising., bBecause, I mean, well... I've never been the greatest, and nor was I monogamous., I believe is the word, sSo she left, and I was left with a company. Unfortunately...

TIPS:

Try not to start your sentences with AND

You have a lot of thoughts in 1 sentence, which makes many 'run-on' sentences.  I suggest breaking them down.  The simpler, the better.

Lastly and more importantly, I understand work... TRUST ME.  Always find the balance between WORK and PLAY.  Like the saying goes 'You can't have your cake and eat it too...' We all have 24hours in a day, and it all can't go to work.  You are one man = 100%.  Divide yourself accordingly (50% = WORK + 50% = HOME = BALANCE) :)