Впрочем, твоя внимательность обычно спасает нас от ошибок.

Впрочем is a discourse word that often means however, though, still, or on the other hand, depending on context.

In this sentence, it has a soft “turning” function: it introduces a contrast or slight correction to what was said before. It often sounds more conversational and literary than a plain но.

So Впрочем, ... can feel like:

• However, ...
• That said, ...
• Still, ...

Its exact English translation depends on the previous sentence.

Твоя agrees with внимательность, which is a feminine singular noun.

The possessive pronoun твой changes form to match the noun it describes:

• masculine: твой
• feminine: твоя
• neuter: твоё
• plural: твои

Since внимательность is feminine, you get твоя внимательность = your attentiveness / your carefulness.

Внимательность is a noun meaning attentiveness, carefulness, or being observant.

It refers to a personal quality or trait, not a single act of paying attention. So here it means something like:

• your attentiveness
• your careful eye
• your habit of noticing things

It comes from внимательный = attentive / careful / observant.

This is a very common question.

• внимание = attention
• внимательность = attentiveness / carefulness

The difference is roughly:

• внимание is the general concept of attention, or attention directed at something
• внимательность is a personal quality: being attentive

Examples:

• Обрати внимание. = Pay attention.
• Его внимательность помогает в работе. = His attentiveness helps at work.

In your sentence, внимательность is used because the speaker is talking about someone’s characteristic quality, not just one moment of attention.

Спасает is the 3rd person singular present tense form of спасать.

So:

• спасать = to save, to rescue, to spare
• спасает = saves

It agrees with the subject внимательность, which is singular:

• внимательность спасает = attentiveness saves

Even though English sometimes prefers a different wording, Russian is perfectly happy to make an abstract noun the subject.

Because обычно means usually, the sentence describes something habitual or generally true. Russian commonly uses the present tense for repeated or typical actions.

So:

• обычно спасает = usually saves

This does not mean it is happening right now only. It means this is what generally happens.

Нас is the accusative form of мы (we).

The verb спасать / спасти takes a direct object: someone is saved.

So:

• спасает нас = saves us

Compare:

• мы = we
• нас = us

The preposition от requires the genitive case.

So:

• ошибка = error, mistake
• genitive plural: ошибок

That gives:

• от ошибок = from errors / from mistakes

With спасать от + genitive, the meaning is often to save/protect someone from something or to keep someone from something bad.

So:

• спасает нас от ошибок = saves us from mistakes

Because the meaning is general: from mistakes in general, not from one specific mistake.

Russian often uses the plural in this kind of broad statement:

• от проблем = from problems
• от ошибок = from mistakes
• от неприятностей = from troubles

If it were one specific mistake, you might see singular in another context, but here plural is the natural choice.

Yes. Russian word order is flexible, and different orders can change emphasis.

The neutral version here is:

• Впрочем, твоя внимательность обычно спасает нас от ошибок.

Other possible orders include:

• Впрочем, обычно твоя внимательность спасает нас от ошибок.
• Впрочем, от ошибок нас обычно спасает твоя внимательность.

These all mean roughly the same thing, but the focus shifts:

• putting обычно earlier emphasizes the habitual nature
• putting от ошибок first emphasizes what you are being saved from
• putting твоя внимательность later can make it more contrastive or dramatic

For learners, the original sentence is a good neutral model.

Yes, literally спасает is saves/rescues, but in Russian it is often used more broadly than the English rescue.

Here it can mean:

• saves us from mistakes
• prevents us from making mistakes
• keeps us from errors

So although the literal image is stronger, the natural sense is often just that someone’s attentiveness helps avoid errors.

It is mostly neutral, but твоя makes it informal because it uses the ты form.

So the sentence sounds like something said to a friend, colleague, family member, or someone you address informally.

A more formal version would use ваша:

• Впрочем, ваша внимательность обычно спасает нас от ошибок.

Everything else in the sentence is neutral and natural in standard Russian.

The stress is:

• впрóчем
• твоя́
• внима́тельность
• обы́чно
• спаса́ет
• нас
• от
• оши́бок

A rough pronunciation guide:

• впрóчем = vpROchem
• твоя́ = tvaYA
• внима́тельность = vniMAtyelnost'
• обы́чно = aBYchna
• спаса́ет = spaSAyet
• оши́бок = aSHEEbək

Stress matters in Russian, so it is worth learning these together with the words.