No te desanimes si te equivocas; lo importante es aprender.

Because this is a negative tú command: Don’t get discouraged.

In Spanish, negative commands for tú use the present subjunctive form:

• Te desanimas = you get discouraged
• No te desanimes = don’t get discouraged

So:

• desanima would be the affirmative tú command of desanimar if it were not reflexive
• but with desanimarse and a negative command, Spanish uses no + te + subjunctive

That is why No te desanimes is correct.

Te is the reflexive pronoun for tú.

Both verbs here are commonly used as reflexive verbs:

• desanimarse = to become discouraged
• equivocarse = to be mistaken / to make a mistake

So:

• te desanimas = you get discouraged
• te equivocas = you make a mistake / you are mistaken

In English, we usually do not translate the reflexive part literally as yourself. It is just part of how these verbs are used in Spanish.

Because after si meaning if, Spanish normally uses the indicative when talking about a real or likely situation in the present or future.

So:

• si te equivocas = if you make a mistake

This is the normal pattern for real conditions:

• Si estudias, aprendes.
• Si tienes tiempo, ven.

Using the subjunctive after si in this kind of sentence would be incorrect.

Very roughly:

• si + present indicative = if this happens
• si + imperfect subjunctive = if this happened / if this were to happen

Not exactly literally, but that is a very natural translation.

Equivocarse can mean:

• to be wrong
• to make a mistake

Examples:

• Te equivocas. = You’re wrong.
• Si te equivocas, no pasa nada. = If you make a mistake, it’s no big deal.

A close non-reflexive expression is cometer un error, which also means to make a mistake, but equivocarse is extremely common in everyday Spanish.

Lo importante means the important thing or what is important.

Here, lo is the neuter article. It is used to turn an adjective into an abstract idea:

• lo bueno = the good thing / what is good
• lo difícil = the difficult part / what is difficult
• lo importante = the important thing / what is important

It is not the same as el importante, which would usually refer to a specific masculine noun and normally would not make sense by itself here.

So in this sentence:

• Lo importante es aprender = The important thing is to learn

Because Spanish often uses an infinitive after ser to say what the important thing, difficult thing, best thing, etc. is.

So:

• Lo importante es aprender.
• Lo mejor es esperar.
• Lo difícil es empezar.

In English, we often use to + verb:

• The important thing is to learn

Spanish uses the plain infinitive:

• aprender

This is completely normal.

Yes, but it means something slightly different in tone and structure.

• Lo importante es aprender = The important thing is to learn
• Lo importante es que aprendas = The important thing is that you learn

The version with aprender is more general and impersonal. The version with que aprendas focuses more directly on you.

Both are correct, but the original sentence sounds broad, natural, and encouraging.

Here desanimarse means to get discouraged, to lose heart, or to feel demotivated.

So No te desanimes can be understood as:

• Don’t get discouraged
• Don’t lose heart
• Don’t be disheartened

It is not just about being sad. It specifically suggests losing motivation or confidence after something goes wrong.

The semicolon links two closely related ideas:

• No te desanimes si te equivocas
• lo importante es aprender

It is a more formal or polished punctuation choice than a comma. It shows a pause stronger than a comma but weaker than a full stop.

You could also see:

• No te desanimes si te equivocas. Lo importante es aprender.
• No te desanimes si te equivocas: lo importante es aprender.

All are possible, but the semicolon works well here because the two parts are closely connected.

It is informal singular, because it uses te and the tú forms:

• No te desanimes
• si te equivocas

If you wanted the formal singular version (usted), it would be:

• No se desanime si se equivoca; lo importante es aprender.

If you wanted the informal plural used in Spain (vosotros), it would be:

• No os desaniméis si os equivocáis; lo importante es aprender.

So the original sentence is addressed to one person in an informal way.

Yes, but Lo importante es aprender is the more natural and standard phrasing.

Both are understandable:

• Lo importante es aprender = the important thing is learning / to learn
• Aprender es lo importante = learning is the important thing

The original structure sounds smoother and more idiomatic because Spanish often uses:

• Lo + adjective + es + infinitive

such as:

• Lo difícil es decidir
• Lo mejor es descansar
• Lo importante es aprender