Thank you very much for your help.
I have stumbled across that article and my head exploded that's why I went on here to ask.
I have zero clue what is that guy talking about. Splitting coins ?
I'm not confident enough to start splitting anything. I can cut apple in two half's but not bitcoin
that guy, Thomas Voegtlin, is the developer of Electrum

and splitting coins means only in case two chains coexist. but in case in the future any fork regarding scaling happens and only one chain exists in the end, you don't have to do anything at all.
He is talking about command lines but I'm using Windows 7

you can always run a live linux quickly and do these steps.
and i believe they have added new features in the newer versions and also the 2.9 is coming which will have additional features. and won't need command line.
i really haven't checked this much. read here:
https://github.com/spesmilo/electrum/blob/master/RELEASE-NOTES#L1-L62.9 is NOT released yet.
Who the fuck fell on his head and came up with idea to split bitcoin ? WTF ?
Would it be best if I change all BTC into cash ?
(unfortunately I'm not verified on any exchange so I will not be able to take money out)
you have 2 options:
1. wait it out. just do nothing. don't touch the coins, don't try to sell or anything and wait to see what happens and after a while when things became clear start again.
2. sell from a small portion to all your coins until you are left with a more comfortable number. for example if you have 10,000
BTC and you are nervous then sell 6,000
BTC and hold 4,000
BTC to feel more comfortable

whether selling is better or not, i can not tell you. sorry!