What were situations where you thought “Wow I am dumb!” while you were learning/reading/listening to japanese?

For me one very stupid thing is that my brain sometimes start to think too much and then struggles with the easiest words.

Like I was reading the word 元気 and my brain had a total lag and was like "What is that? 元 origin, 気 soul, spirit, feeling.. origin feeling? What? " and after a good while.. "Holy shit it's just げんき one of the first words I have learned..I am dumb"

Or the time when my brain for some reason decided to pronunce 名前 in my head as なぜん and wondered what the hell なぜん is until I read again and felt so dumb as I realised it's just なまえ.. lol 

Another thing is that I often connect the wrong things..

For example

多少この子たちにとっては試練かもしれないけど、頑張って楽曲を覚えてもらって、一日目で柏木が卒業したら、次の日からこの10人で行きますっていうライブをやらないと、たぶんけっこうな確率でもしかしたらファンがなくなる。

At the last part my brain was so convinced that でも belonged together here and I was thinking and thinking

is it something like しかし・たら. ?

でも can mean "but" and しかし can also mean "but" so is it some form of emphasize and it's でもしかし ?

Is it しか～ない form?

What the hell is it? And then suddenly after like a good minute of thinking I remembered that the term "もしかしたら"

exists..