I'm scared to death to get BTCs and their price going down before exchanging them.
I'm scared to death of not getting BTCs before their price goes up.
You've got a point. While ago I bought BTC @ $10. When it got to $110 i sold it all

You multiplied your investment by 10, I wouldn't worry about it. I learned about btc when the price was $100 and sold all at $300. Then bought back again around 500
