I read that in order to break the trace from the sender of my Monero to the recipient of my Monero, I need to make several transactions between my wallets, for example:
someone sent me 1 XMR --> my wallet 1 --> my wallet 2 --> recipient of my 1 XMR
(that i consider 1 additional transaction in aim to break the trace)
Can anyone explain so even layman understands chance/probability of breaking the trace when doing 0,1,2 such transactions between own wallets?
Nothing is guaranteed, you can read the monero white paper Zero to Monero for the details. Depending on your threat model you have to assume it would get probabilistically traced in the future at some point.
Basic operational security ideas:
Enough iterations until your comfortable with the risk level. I.e. is it going to be too much work for whoever would care about this to trace it?
Bonus points