I made some mistakes by holding Altcoins
[...]
So it hurts me when I see that I have lost 50% of my total Portfolio
Sadly most people involved with Altcoins can say that.
Instead of keeping yourself to one true revolutionary technology (Bitcoin) people move their money to copy-paste coins with different names. That is falling for get rich quick scheme which is sad

I hope people will learn on your lesson to keep to actually true technological advances and not fairy-stories.