Più ascolto la lezione, meno mi confondo.

This is a very common Italian pattern meaning the more ..., the less ....

So:

• Più ascolto la lezione = The more I listen to the lesson
• meno mi confondo = the less I get confused

Italian often uses:

• più ... più ... = the more ..., the more ...
• meno ... meno ... = the less ..., the less ...
• più ... meno ... = the more ..., the less ...

It works very similarly to English, just without needing extra words like the.

Because Italian does not use an article here. In English, the in the more / the less is part of a fixed comparative structure, but Italian simply uses più and meno by themselves.

So:

• Più studio, più capisco. = The more I study, the more I understand.
• Più ascolto la lezione, meno mi confondo. = The more I listen to the lesson, the less I get confused.

This is completely normal in Italian.

Because ascolto is the present tense: I listen.

• ascolto = I listen / I am listening
• ascoltando = listening

In this structure, Italian normally uses a full verb, not a gerund:

• Più ascolto, meno sbaglio.
• not usually Più ascoltando...

So Più ascolto la lezione literally means The more I listen to the lesson.

Because Italian usually leaves out subject pronouns when the verb ending already shows who the subject is.

Here, ascolto clearly means I listen, and mi confondo clearly means I get confused / I confuse myself, so io is unnecessary.

You could say:

• Più io ascolto la lezione, meno mi confondo

but it sounds more emphatic, as if you are stressing I. In normal speech, Italian prefers:

• Più ascolto la lezione, meno mi confondo.

Mi confondo comes from the reflexive verb confondersi, which means:

• to get confused
• to become confused
• sometimes to mix oneself up

So meno mi confondo means:

• I get confused less
• the less confused I become
• more naturally in English: the less I get confused

It is not usually best translated word-for-word as I confuse myself less, even though that is the literal structure.

Because the verb here is confondersi, a reflexive verb.

Its forms are:

• mi confondo = I get confused
• ti confondi = you get confused
• si confonde = he/she gets confused

The reflexive pronoun changes with the subject. Without mi, confondo by itself would usually mean I confuse something or someone.

Compare:

• Confondo le parole. = I confuse the words.
• Mi confondo. = I get confused.

So mi is essential here.

Because confondersi emphasizes the process or result of becoming confused, while essere confuso describes a state.

• Mi confondo = I get confused / I become confused
• Sono confuso = I am confused

In this sentence, the idea is dynamic: as I listen more, I become confused less often or less easily. That is why mi confondo fits well.

You could say:

• Più ascolto la lezione, meno sono confuso

but it sounds less natural than meno mi confondo in this context.

Italian often uses the definite article more than English does.

So ascoltare la lezione is the normal way to say:

• to listen to the lesson
• to listen to the class
• depending on context, even to listen to the lecture

Using la makes it sound like a specific lesson or the lesson in progress.

In some contexts, dropping the article might be possible in other expressions, but here ascoltare la lezione is the standard phrasing.

Yes. That is grammatically correct if the context already makes clear what you are listening to.

• Più ascolto, meno mi confondo. = The more I listen, the less I get confused.

Adding la lezione just makes the sentence more specific.

The comma is standard and helpful because it separates the two linked parts of the comparison:

• Più ascolto la lezione, meno mi confondo.

It works much like in English:

• The more I listen to the lesson, the less I get confused.

You may sometimes see similar short expressions without a comma in informal writing, but using the comma here is the safest and most natural choice.

Usually this pattern keeps the two parts in the same order:

• Più ascolto la lezione, meno mi confondo.

You could rearrange things a little for emphasis, but the standard comparative-correlative pattern is best kept as is.

For example, Meno mi confondo, più ascolto la lezione changes the meaning relationship and sounds odd if you are trying to express the original idea.

So for learners, it is best to treat this as a fixed structure: Più + clause, meno + clause.

Both verbs are in the present indicative:

• ascolto = present, 1st person singular of ascoltare
• mi confondo = present, 1st person singular of confondersi

In Italian, the present tense can express:

• a general truth
• a habitual action
• something happening now

Here it expresses a general relationship: whenever I listen more, I get confused less.

Più is pronounced roughly like pyoo, with stress on the only syllable.

A couple of useful points:

• The accent mark in più is written because the word is stressed and ends in a vowel.
• The i and ù are pronounced together as one smooth sound: pyoo.

This word is extremely common in Italian, so it is worth getting comfortable with it early:

• più = more
• meno = less

Yes, very often. It is a productive pattern in Italian.

Examples:

• Più studio, più imparo. = The more I study, the more I learn.
• Più leggo, meno sbaglio. = The more I read, the less I make mistakes.
• Meno parlo, più ascolto. = The less I speak, the more I listen.

So your sentence is a very useful model for building similar ones.