the use and the meaning of the verb 実感する in the given example


I would like to ask for help with translating the following sentence:

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    今日は、「練習していないことは嘘をつかない」という悲しいセリフを実感しました。練習も嘘をつかないんだけど、その逆も然り。
    
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I understand parts of it for example

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    練習していないことは嘘をつかない
    悲しい
    セリフ
    実感する
    
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But my problem is putting them together in translation of the sentence above.
Also, I found out that 実感する means "have a feeling", "my actual feeling" is or
"to realize", but I can't make it out which one is the right one here.

So basically, I have problem with the use of the verb 実感する, furthermore with
the translation of the whole sentence.




Something like

> 今日は、「練習していないことは嘘をつかない」という悲しいセリフを実感しました。  
>  Today I experienced the sad line "the fact of not having practised doesn't
> lie" for myself.

If you gave some context there might be a more fitting translation.




It's something along the lines of:

> Today I realized what is really meant by the woeful words, "it shows when
> you have not practiced". I know it shows when one has practiced; but, the
> opposite is also very true.

Basically, 実感 means that one has "actually (実) experienced/felt (感)"
something.

